/*
* 
* common-utils-core v1.0.0
* 
* Copyright 2023, Caize Chen.
* All rights reserved.
*       
*/
'use strict';

function _iterableToArrayLimit(r, l) {
  var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"];
  if (null != t) {
    var e,
      n,
      i,
      u,
      a = [],
      f = !0,
      o = !1;
    try {
      if (i = (t = t.call(r)).next, 0 === l) {
        if (Object(t) !== t) return;
        f = !1;
      } else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0);
    } catch (r) {
      o = !0, n = r;
    } finally {
      try {
        if (!f && null != t.return && (u = t.return(), Object(u) !== u)) return;
      } finally {
        if (o) throw n;
      }
    }
    return a;
  }
}
function _slicedToArray(arr, i) {
  return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest();
}
function _toConsumableArray(arr) {
  return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread();
}
function _arrayWithoutHoles(arr) {
  if (Array.isArray(arr)) return _arrayLikeToArray(arr);
}
function _arrayWithHoles(arr) {
  if (Array.isArray(arr)) return arr;
}
function _iterableToArray(iter) {
  if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter);
}
function _unsupportedIterableToArray(o, minLen) {
  if (!o) return;
  if (typeof o === "string") return _arrayLikeToArray(o, minLen);
  var n = Object.prototype.toString.call(o).slice(8, -1);
  if (n === "Object" && o.constructor) n = o.constructor.name;
  if (n === "Map" || n === "Set") return Array.from(o);
  if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
}
function _arrayLikeToArray(arr, len) {
  if (len == null || len > arr.length) len = arr.length;
  for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];
  return arr2;
}
function _nonIterableSpread() {
  throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}
function _nonIterableRest() {
  throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}

var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};

function getDefaultExportFromCjs (x) {
	return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
}

function commonjsRequire(path) {
	throw new Error('Could not dynamically require "' + path + '". Please configure the dynamicRequireTargets or/and ignoreDynamicRequires option of @rollup/plugin-commonjs appropriately for this require call to work.');
}

var moment$1 = {exports: {}};

(function (module, exports) {
  (function (global, factory) {
    module.exports = factory() ;
  })(commonjsGlobal, function () {

    var hookCallback;
    function hooks() {
      return hookCallback.apply(null, arguments);
    }

    // This is done to register the method called with moment()
    // without creating circular dependencies.
    function setHookCallback(callback) {
      hookCallback = callback;
    }
    function isArray(input) {
      return input instanceof Array || Object.prototype.toString.call(input) === '[object Array]';
    }
    function isObject(input) {
      // IE8 will treat undefined and null as object if it wasn't for
      // input != null
      return input != null && Object.prototype.toString.call(input) === '[object Object]';
    }
    function hasOwnProp(a, b) {
      return Object.prototype.hasOwnProperty.call(a, b);
    }
    function isObjectEmpty(obj) {
      if (Object.getOwnPropertyNames) {
        return Object.getOwnPropertyNames(obj).length === 0;
      } else {
        var k;
        for (k in obj) {
          if (hasOwnProp(obj, k)) {
            return false;
          }
        }
        return true;
      }
    }
    function isUndefined(input) {
      return input === void 0;
    }
    function isNumber(input) {
      return typeof input === 'number' || Object.prototype.toString.call(input) === '[object Number]';
    }
    function isDate(input) {
      return input instanceof Date || Object.prototype.toString.call(input) === '[object Date]';
    }
    function map(arr, fn) {
      var res = [],
        i;
      for (i = 0; i < arr.length; ++i) {
        res.push(fn(arr[i], i));
      }
      return res;
    }
    function extend(a, b) {
      for (var i in b) {
        if (hasOwnProp(b, i)) {
          a[i] = b[i];
        }
      }
      if (hasOwnProp(b, 'toString')) {
        a.toString = b.toString;
      }
      if (hasOwnProp(b, 'valueOf')) {
        a.valueOf = b.valueOf;
      }
      return a;
    }
    function createUTC(input, format, locale, strict) {
      return createLocalOrUTC(input, format, locale, strict, true).utc();
    }
    function defaultParsingFlags() {
      // We need to deep clone this object.
      return {
        empty: false,
        unusedTokens: [],
        unusedInput: [],
        overflow: -2,
        charsLeftOver: 0,
        nullInput: false,
        invalidEra: null,
        invalidMonth: null,
        invalidFormat: false,
        userInvalidated: false,
        iso: false,
        parsedDateParts: [],
        era: null,
        meridiem: null,
        rfc2822: false,
        weekdayMismatch: false
      };
    }
    function getParsingFlags(m) {
      if (m._pf == null) {
        m._pf = defaultParsingFlags();
      }
      return m._pf;
    }
    var some;
    if (Array.prototype.some) {
      some = Array.prototype.some;
    } else {
      some = function (fun) {
        var t = Object(this),
          len = t.length >>> 0,
          i;
        for (i = 0; i < len; i++) {
          if (i in t && fun.call(this, t[i], i, t)) {
            return true;
          }
        }
        return false;
      };
    }
    function isValid(m) {
      if (m._isValid == null) {
        var flags = getParsingFlags(m),
          parsedParts = some.call(flags.parsedDateParts, function (i) {
            return i != null;
          }),
          isNowValid = !isNaN(m._d.getTime()) && flags.overflow < 0 && !flags.empty && !flags.invalidEra && !flags.invalidMonth && !flags.invalidWeekday && !flags.weekdayMismatch && !flags.nullInput && !flags.invalidFormat && !flags.userInvalidated && (!flags.meridiem || flags.meridiem && parsedParts);
        if (m._strict) {
          isNowValid = isNowValid && flags.charsLeftOver === 0 && flags.unusedTokens.length === 0 && flags.bigHour === undefined;
        }
        if (Object.isFrozen == null || !Object.isFrozen(m)) {
          m._isValid = isNowValid;
        } else {
          return isNowValid;
        }
      }
      return m._isValid;
    }
    function createInvalid(flags) {
      var m = createUTC(NaN);
      if (flags != null) {
        extend(getParsingFlags(m), flags);
      } else {
        getParsingFlags(m).userInvalidated = true;
      }
      return m;
    }

    // Plugins that add properties should also add the key here (null value),
    // so we can properly clone ourselves.
    var momentProperties = hooks.momentProperties = [],
      updateInProgress = false;
    function copyConfig(to, from) {
      var i, prop, val;
      if (!isUndefined(from._isAMomentObject)) {
        to._isAMomentObject = from._isAMomentObject;
      }
      if (!isUndefined(from._i)) {
        to._i = from._i;
      }
      if (!isUndefined(from._f)) {
        to._f = from._f;
      }
      if (!isUndefined(from._l)) {
        to._l = from._l;
      }
      if (!isUndefined(from._strict)) {
        to._strict = from._strict;
      }
      if (!isUndefined(from._tzm)) {
        to._tzm = from._tzm;
      }
      if (!isUndefined(from._isUTC)) {
        to._isUTC = from._isUTC;
      }
      if (!isUndefined(from._offset)) {
        to._offset = from._offset;
      }
      if (!isUndefined(from._pf)) {
        to._pf = getParsingFlags(from);
      }
      if (!isUndefined(from._locale)) {
        to._locale = from._locale;
      }
      if (momentProperties.length > 0) {
        for (i = 0; i < momentProperties.length; i++) {
          prop = momentProperties[i];
          val = from[prop];
          if (!isUndefined(val)) {
            to[prop] = val;
          }
        }
      }
      return to;
    }

    // Moment prototype object
    function Moment(config) {
      copyConfig(this, config);
      this._d = new Date(config._d != null ? config._d.getTime() : NaN);
      if (!this.isValid()) {
        this._d = new Date(NaN);
      }
      // Prevent infinite loop in case updateOffset creates new moment
      // objects.
      if (updateInProgress === false) {
        updateInProgress = true;
        hooks.updateOffset(this);
        updateInProgress = false;
      }
    }
    function isMoment(obj) {
      return obj instanceof Moment || obj != null && obj._isAMomentObject != null;
    }
    function warn(msg) {
      if (hooks.suppressDeprecationWarnings === false && typeof console !== 'undefined' && console.warn) {
        console.warn('Deprecation warning: ' + msg);
      }
    }
    function deprecate(msg, fn) {
      var firstTime = true;
      return extend(function () {
        if (hooks.deprecationHandler != null) {
          hooks.deprecationHandler(null, msg);
        }
        if (firstTime) {
          var args = [],
            arg,
            i,
            key;
          for (i = 0; i < arguments.length; i++) {
            arg = '';
            if (typeof arguments[i] === 'object') {
              arg += '\n[' + i + '] ';
              for (key in arguments[0]) {
                if (hasOwnProp(arguments[0], key)) {
                  arg += key + ': ' + arguments[0][key] + ', ';
                }
              }
              arg = arg.slice(0, -2); // Remove trailing comma and space
            } else {
              arg = arguments[i];
            }
            args.push(arg);
          }
          warn(msg + '\nArguments: ' + Array.prototype.slice.call(args).join('') + '\n' + new Error().stack);
          firstTime = false;
        }
        return fn.apply(this, arguments);
      }, fn);
    }
    var deprecations = {};
    function deprecateSimple(name, msg) {
      if (hooks.deprecationHandler != null) {
        hooks.deprecationHandler(name, msg);
      }
      if (!deprecations[name]) {
        warn(msg);
        deprecations[name] = true;
      }
    }
    hooks.suppressDeprecationWarnings = false;
    hooks.deprecationHandler = null;
    function isFunction(input) {
      return typeof Function !== 'undefined' && input instanceof Function || Object.prototype.toString.call(input) === '[object Function]';
    }
    function set(config) {
      var prop, i;
      for (i in config) {
        if (hasOwnProp(config, i)) {
          prop = config[i];
          if (isFunction(prop)) {
            this[i] = prop;
          } else {
            this['_' + i] = prop;
          }
        }
      }
      this._config = config;
      // Lenient ordinal parsing accepts just a number in addition to
      // number + (possibly) stuff coming from _dayOfMonthOrdinalParse.
      // TODO: Remove "ordinalParse" fallback in next major release.
      this._dayOfMonthOrdinalParseLenient = new RegExp((this._dayOfMonthOrdinalParse.source || this._ordinalParse.source) + '|' + /\d{1,2}/.source);
    }
    function mergeConfigs(parentConfig, childConfig) {
      var res = extend({}, parentConfig),
        prop;
      for (prop in childConfig) {
        if (hasOwnProp(childConfig, prop)) {
          if (isObject(parentConfig[prop]) && isObject(childConfig[prop])) {
            res[prop] = {};
            extend(res[prop], parentConfig[prop]);
            extend(res[prop], childConfig[prop]);
          } else if (childConfig[prop] != null) {
            res[prop] = childConfig[prop];
          } else {
            delete res[prop];
          }
        }
      }
      for (prop in parentConfig) {
        if (hasOwnProp(parentConfig, prop) && !hasOwnProp(childConfig, prop) && isObject(parentConfig[prop])) {
          // make sure changes to properties don't modify parent config
          res[prop] = extend({}, res[prop]);
        }
      }
      return res;
    }
    function Locale(config) {
      if (config != null) {
        this.set(config);
      }
    }
    var keys;
    if (Object.keys) {
      keys = Object.keys;
    } else {
      keys = function (obj) {
        var i,
          res = [];
        for (i in obj) {
          if (hasOwnProp(obj, i)) {
            res.push(i);
          }
        }
        return res;
      };
    }
    var defaultCalendar = {
      sameDay: '[Today at] LT',
      nextDay: '[Tomorrow at] LT',
      nextWeek: 'dddd [at] LT',
      lastDay: '[Yesterday at] LT',
      lastWeek: '[Last] dddd [at] LT',
      sameElse: 'L'
    };
    function calendar(key, mom, now) {
      var output = this._calendar[key] || this._calendar['sameElse'];
      return isFunction(output) ? output.call(mom, now) : output;
    }
    function zeroFill(number, targetLength, forceSign) {
      var absNumber = '' + Math.abs(number),
        zerosToFill = targetLength - absNumber.length,
        sign = number >= 0;
      return (sign ? forceSign ? '+' : '' : '-') + Math.pow(10, Math.max(0, zerosToFill)).toString().substr(1) + absNumber;
    }
    var formattingTokens = /(\[[^\[]*\])|(\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|N{1,5}|YYYYYY|YYYYY|YYYY|YY|y{2,4}|yo?|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g,
      localFormattingTokens = /(\[[^\[]*\])|(\\)?(LTS|LT|LL?L?L?|l{1,4})/g,
      formatFunctions = {},
      formatTokenFunctions = {};

    // token:    'M'
    // padded:   ['MM', 2]
    // ordinal:  'Mo'
    // callback: function () { this.month() + 1 }
    function addFormatToken(token, padded, ordinal, callback) {
      var func = callback;
      if (typeof callback === 'string') {
        func = function () {
          return this[callback]();
        };
      }
      if (token) {
        formatTokenFunctions[token] = func;
      }
      if (padded) {
        formatTokenFunctions[padded[0]] = function () {
          return zeroFill(func.apply(this, arguments), padded[1], padded[2]);
        };
      }
      if (ordinal) {
        formatTokenFunctions[ordinal] = function () {
          return this.localeData().ordinal(func.apply(this, arguments), token);
        };
      }
    }
    function removeFormattingTokens(input) {
      if (input.match(/\[[\s\S]/)) {
        return input.replace(/^\[|\]$/g, '');
      }
      return input.replace(/\\/g, '');
    }
    function makeFormatFunction(format) {
      var array = format.match(formattingTokens),
        i,
        length;
      for (i = 0, length = array.length; i < length; i++) {
        if (formatTokenFunctions[array[i]]) {
          array[i] = formatTokenFunctions[array[i]];
        } else {
          array[i] = removeFormattingTokens(array[i]);
        }
      }
      return function (mom) {
        var output = '',
          i;
        for (i = 0; i < length; i++) {
          output += isFunction(array[i]) ? array[i].call(mom, format) : array[i];
        }
        return output;
      };
    }

    // format date using native date object
    function formatMoment(m, format) {
      if (!m.isValid()) {
        return m.localeData().invalidDate();
      }
      format = expandFormat(format, m.localeData());
      formatFunctions[format] = formatFunctions[format] || makeFormatFunction(format);
      return formatFunctions[format](m);
    }
    function expandFormat(format, locale) {
      var i = 5;
      function replaceLongDateFormatTokens(input) {
        return locale.longDateFormat(input) || input;
      }
      localFormattingTokens.lastIndex = 0;
      while (i >= 0 && localFormattingTokens.test(format)) {
        format = format.replace(localFormattingTokens, replaceLongDateFormatTokens);
        localFormattingTokens.lastIndex = 0;
        i -= 1;
      }
      return format;
    }
    var defaultLongDateFormat = {
      LTS: 'h:mm:ss A',
      LT: 'h:mm A',
      L: 'MM/DD/YYYY',
      LL: 'MMMM D, YYYY',
      LLL: 'MMMM D, YYYY h:mm A',
      LLLL: 'dddd, MMMM D, YYYY h:mm A'
    };
    function longDateFormat(key) {
      var format = this._longDateFormat[key],
        formatUpper = this._longDateFormat[key.toUpperCase()];
      if (format || !formatUpper) {
        return format;
      }
      this._longDateFormat[key] = formatUpper.match(formattingTokens).map(function (tok) {
        if (tok === 'MMMM' || tok === 'MM' || tok === 'DD' || tok === 'dddd') {
          return tok.slice(1);
        }
        return tok;
      }).join('');
      return this._longDateFormat[key];
    }
    var defaultInvalidDate = 'Invalid date';
    function invalidDate() {
      return this._invalidDate;
    }
    var defaultOrdinal = '%d',
      defaultDayOfMonthOrdinalParse = /\d{1,2}/;
    function ordinal(number) {
      return this._ordinal.replace('%d', number);
    }
    var defaultRelativeTime = {
      future: 'in %s',
      past: '%s ago',
      s: 'a few seconds',
      ss: '%d seconds',
      m: 'a minute',
      mm: '%d minutes',
      h: 'an hour',
      hh: '%d hours',
      d: 'a day',
      dd: '%d days',
      w: 'a week',
      ww: '%d weeks',
      M: 'a month',
      MM: '%d months',
      y: 'a year',
      yy: '%d years'
    };
    function relativeTime(number, withoutSuffix, string, isFuture) {
      var output = this._relativeTime[string];
      return isFunction(output) ? output(number, withoutSuffix, string, isFuture) : output.replace(/%d/i, number);
    }
    function pastFuture(diff, output) {
      var format = this._relativeTime[diff > 0 ? 'future' : 'past'];
      return isFunction(format) ? format(output) : format.replace(/%s/i, output);
    }
    var aliases = {};
    function addUnitAlias(unit, shorthand) {
      var lowerCase = unit.toLowerCase();
      aliases[lowerCase] = aliases[lowerCase + 's'] = aliases[shorthand] = unit;
    }
    function normalizeUnits(units) {
      return typeof units === 'string' ? aliases[units] || aliases[units.toLowerCase()] : undefined;
    }
    function normalizeObjectUnits(inputObject) {
      var normalizedInput = {},
        normalizedProp,
        prop;
      for (prop in inputObject) {
        if (hasOwnProp(inputObject, prop)) {
          normalizedProp = normalizeUnits(prop);
          if (normalizedProp) {
            normalizedInput[normalizedProp] = inputObject[prop];
          }
        }
      }
      return normalizedInput;
    }
    var priorities = {};
    function addUnitPriority(unit, priority) {
      priorities[unit] = priority;
    }
    function getPrioritizedUnits(unitsObj) {
      var units = [],
        u;
      for (u in unitsObj) {
        if (hasOwnProp(unitsObj, u)) {
          units.push({
            unit: u,
            priority: priorities[u]
          });
        }
      }
      units.sort(function (a, b) {
        return a.priority - b.priority;
      });
      return units;
    }
    function isLeapYear(year) {
      return year % 4 === 0 && year % 100 !== 0 || year % 400 === 0;
    }
    function absFloor(number) {
      if (number < 0) {
        // -0 -> 0
        return Math.ceil(number) || 0;
      } else {
        return Math.floor(number);
      }
    }
    function toInt(argumentForCoercion) {
      var coercedNumber = +argumentForCoercion,
        value = 0;
      if (coercedNumber !== 0 && isFinite(coercedNumber)) {
        value = absFloor(coercedNumber);
      }
      return value;
    }
    function makeGetSet(unit, keepTime) {
      return function (value) {
        if (value != null) {
          set$1(this, unit, value);
          hooks.updateOffset(this, keepTime);
          return this;
        } else {
          return get(this, unit);
        }
      };
    }
    function get(mom, unit) {
      return mom.isValid() ? mom._d['get' + (mom._isUTC ? 'UTC' : '') + unit]() : NaN;
    }
    function set$1(mom, unit, value) {
      if (mom.isValid() && !isNaN(value)) {
        if (unit === 'FullYear' && isLeapYear(mom.year()) && mom.month() === 1 && mom.date() === 29) {
          value = toInt(value);
          mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value, mom.month(), daysInMonth(value, mom.month()));
        } else {
          mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value);
        }
      }
    }

    // MOMENTS

    function stringGet(units) {
      units = normalizeUnits(units);
      if (isFunction(this[units])) {
        return this[units]();
      }
      return this;
    }
    function stringSet(units, value) {
      if (typeof units === 'object') {
        units = normalizeObjectUnits(units);
        var prioritized = getPrioritizedUnits(units),
          i;
        for (i = 0; i < prioritized.length; i++) {
          this[prioritized[i].unit](units[prioritized[i].unit]);
        }
      } else {
        units = normalizeUnits(units);
        if (isFunction(this[units])) {
          return this[units](value);
        }
      }
      return this;
    }
    var match1 = /\d/,
      //       0 - 9
      match2 = /\d\d/,
      //      00 - 99
      match3 = /\d{3}/,
      //     000 - 999
      match4 = /\d{4}/,
      //    0000 - 9999
      match6 = /[+-]?\d{6}/,
      // -999999 - 999999
      match1to2 = /\d\d?/,
      //       0 - 99
      match3to4 = /\d\d\d\d?/,
      //     999 - 9999
      match5to6 = /\d\d\d\d\d\d?/,
      //   99999 - 999999
      match1to3 = /\d{1,3}/,
      //       0 - 999
      match1to4 = /\d{1,4}/,
      //       0 - 9999
      match1to6 = /[+-]?\d{1,6}/,
      // -999999 - 999999
      matchUnsigned = /\d+/,
      //       0 - inf
      matchSigned = /[+-]?\d+/,
      //    -inf - inf
      matchOffset = /Z|[+-]\d\d:?\d\d/gi,
      // +00:00 -00:00 +0000 -0000 or Z
      matchShortOffset = /Z|[+-]\d\d(?::?\d\d)?/gi,
      // +00 -00 +00:00 -00:00 +0000 -0000 or Z
      matchTimestamp = /[+-]?\d+(\.\d{1,3})?/,
      // 123456789 123456789.123
      // any word (or two) characters or numbers including two/three word month in arabic.
      // includes scottish gaelic two word and hyphenated months
      matchWord = /[0-9]{0,256}['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFF07\uFF10-\uFFEF]{1,256}|[\u0600-\u06FF\/]{1,256}(\s*?[\u0600-\u06FF]{1,256}){1,2}/i,
      regexes;
    regexes = {};
    function addRegexToken(token, regex, strictRegex) {
      regexes[token] = isFunction(regex) ? regex : function (isStrict, localeData) {
        return isStrict && strictRegex ? strictRegex : regex;
      };
    }
    function getParseRegexForToken(token, config) {
      if (!hasOwnProp(regexes, token)) {
        return new RegExp(unescapeFormat(token));
      }
      return regexes[token](config._strict, config._locale);
    }

    // Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript
    function unescapeFormat(s) {
      return regexEscape(s.replace('\\', '').replace(/\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g, function (matched, p1, p2, p3, p4) {
        return p1 || p2 || p3 || p4;
      }));
    }
    function regexEscape(s) {
      return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
    }
    var tokens = {};
    function addParseToken(token, callback) {
      var i,
        func = callback;
      if (typeof token === 'string') {
        token = [token];
      }
      if (isNumber(callback)) {
        func = function (input, array) {
          array[callback] = toInt(input);
        };
      }
      for (i = 0; i < token.length; i++) {
        tokens[token[i]] = func;
      }
    }
    function addWeekParseToken(token, callback) {
      addParseToken(token, function (input, array, config, token) {
        config._w = config._w || {};
        callback(input, config._w, config, token);
      });
    }
    function addTimeToArrayFromToken(token, input, config) {
      if (input != null && hasOwnProp(tokens, token)) {
        tokens[token](input, config._a, config, token);
      }
    }
    var YEAR = 0,
      MONTH = 1,
      DATE = 2,
      HOUR = 3,
      MINUTE = 4,
      SECOND = 5,
      MILLISECOND = 6,
      WEEK = 7,
      WEEKDAY = 8;
    function mod(n, x) {
      return (n % x + x) % x;
    }
    var indexOf;
    if (Array.prototype.indexOf) {
      indexOf = Array.prototype.indexOf;
    } else {
      indexOf = function (o) {
        // I know
        var i;
        for (i = 0; i < this.length; ++i) {
          if (this[i] === o) {
            return i;
          }
        }
        return -1;
      };
    }
    function daysInMonth(year, month) {
      if (isNaN(year) || isNaN(month)) {
        return NaN;
      }
      var modMonth = mod(month, 12);
      year += (month - modMonth) / 12;
      return modMonth === 1 ? isLeapYear(year) ? 29 : 28 : 31 - modMonth % 7 % 2;
    }

    // FORMATTING

    addFormatToken('M', ['MM', 2], 'Mo', function () {
      return this.month() + 1;
    });
    addFormatToken('MMM', 0, 0, function (format) {
      return this.localeData().monthsShort(this, format);
    });
    addFormatToken('MMMM', 0, 0, function (format) {
      return this.localeData().months(this, format);
    });

    // ALIASES

    addUnitAlias('month', 'M');

    // PRIORITY

    addUnitPriority('month', 8);

    // PARSING

    addRegexToken('M', match1to2);
    addRegexToken('MM', match1to2, match2);
    addRegexToken('MMM', function (isStrict, locale) {
      return locale.monthsShortRegex(isStrict);
    });
    addRegexToken('MMMM', function (isStrict, locale) {
      return locale.monthsRegex(isStrict);
    });
    addParseToken(['M', 'MM'], function (input, array) {
      array[MONTH] = toInt(input) - 1;
    });
    addParseToken(['MMM', 'MMMM'], function (input, array, config, token) {
      var month = config._locale.monthsParse(input, token, config._strict);
      // if we didn't find a month name, mark the date as invalid.
      if (month != null) {
        array[MONTH] = month;
      } else {
        getParsingFlags(config).invalidMonth = input;
      }
    });

    // LOCALES

    var defaultLocaleMonths = 'January_February_March_April_May_June_July_August_September_October_November_December'.split('_'),
      defaultLocaleMonthsShort = 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
      MONTHS_IN_FORMAT = /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?/,
      defaultMonthsShortRegex = matchWord,
      defaultMonthsRegex = matchWord;
    function localeMonths(m, format) {
      if (!m) {
        return isArray(this._months) ? this._months : this._months['standalone'];
      }
      return isArray(this._months) ? this._months[m.month()] : this._months[(this._months.isFormat || MONTHS_IN_FORMAT).test(format) ? 'format' : 'standalone'][m.month()];
    }
    function localeMonthsShort(m, format) {
      if (!m) {
        return isArray(this._monthsShort) ? this._monthsShort : this._monthsShort['standalone'];
      }
      return isArray(this._monthsShort) ? this._monthsShort[m.month()] : this._monthsShort[MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone'][m.month()];
    }
    function handleStrictParse(monthName, format, strict) {
      var i,
        ii,
        mom,
        llc = monthName.toLocaleLowerCase();
      if (!this._monthsParse) {
        // this is not used
        this._monthsParse = [];
        this._longMonthsParse = [];
        this._shortMonthsParse = [];
        for (i = 0; i < 12; ++i) {
          mom = createUTC([2000, i]);
          this._shortMonthsParse[i] = this.monthsShort(mom, '').toLocaleLowerCase();
          this._longMonthsParse[i] = this.months(mom, '').toLocaleLowerCase();
        }
      }
      if (strict) {
        if (format === 'MMM') {
          ii = indexOf.call(this._shortMonthsParse, llc);
          return ii !== -1 ? ii : null;
        } else {
          ii = indexOf.call(this._longMonthsParse, llc);
          return ii !== -1 ? ii : null;
        }
      } else {
        if (format === 'MMM') {
          ii = indexOf.call(this._shortMonthsParse, llc);
          if (ii !== -1) {
            return ii;
          }
          ii = indexOf.call(this._longMonthsParse, llc);
          return ii !== -1 ? ii : null;
        } else {
          ii = indexOf.call(this._longMonthsParse, llc);
          if (ii !== -1) {
            return ii;
          }
          ii = indexOf.call(this._shortMonthsParse, llc);
          return ii !== -1 ? ii : null;
        }
      }
    }
    function localeMonthsParse(monthName, format, strict) {
      var i, mom, regex;
      if (this._monthsParseExact) {
        return handleStrictParse.call(this, monthName, format, strict);
      }
      if (!this._monthsParse) {
        this._monthsParse = [];
        this._longMonthsParse = [];
        this._shortMonthsParse = [];
      }

      // TODO: add sorting
      // Sorting makes sure if one month (or abbr) is a prefix of another
      // see sorting in computeMonthsParse
      for (i = 0; i < 12; i++) {
        // make the regex if we don't have it already
        mom = createUTC([2000, i]);
        if (strict && !this._longMonthsParse[i]) {
          this._longMonthsParse[i] = new RegExp('^' + this.months(mom, '').replace('.', '') + '$', 'i');
          this._shortMonthsParse[i] = new RegExp('^' + this.monthsShort(mom, '').replace('.', '') + '$', 'i');
        }
        if (!strict && !this._monthsParse[i]) {
          regex = '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
          this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
        }
        // test the regex
        if (strict && format === 'MMMM' && this._longMonthsParse[i].test(monthName)) {
          return i;
        } else if (strict && format === 'MMM' && this._shortMonthsParse[i].test(monthName)) {
          return i;
        } else if (!strict && this._monthsParse[i].test(monthName)) {
          return i;
        }
      }
    }

    // MOMENTS

    function setMonth(mom, value) {
      var dayOfMonth;
      if (!mom.isValid()) {
        // No op
        return mom;
      }
      if (typeof value === 'string') {
        if (/^\d+$/.test(value)) {
          value = toInt(value);
        } else {
          value = mom.localeData().monthsParse(value);
          // TODO: Another silent failure?
          if (!isNumber(value)) {
            return mom;
          }
        }
      }
      dayOfMonth = Math.min(mom.date(), daysInMonth(mom.year(), value));
      mom._d['set' + (mom._isUTC ? 'UTC' : '') + 'Month'](value, dayOfMonth);
      return mom;
    }
    function getSetMonth(value) {
      if (value != null) {
        setMonth(this, value);
        hooks.updateOffset(this, true);
        return this;
      } else {
        return get(this, 'Month');
      }
    }
    function getDaysInMonth() {
      return daysInMonth(this.year(), this.month());
    }
    function monthsShortRegex(isStrict) {
      if (this._monthsParseExact) {
        if (!hasOwnProp(this, '_monthsRegex')) {
          computeMonthsParse.call(this);
        }
        if (isStrict) {
          return this._monthsShortStrictRegex;
        } else {
          return this._monthsShortRegex;
        }
      } else {
        if (!hasOwnProp(this, '_monthsShortRegex')) {
          this._monthsShortRegex = defaultMonthsShortRegex;
        }
        return this._monthsShortStrictRegex && isStrict ? this._monthsShortStrictRegex : this._monthsShortRegex;
      }
    }
    function monthsRegex(isStrict) {
      if (this._monthsParseExact) {
        if (!hasOwnProp(this, '_monthsRegex')) {
          computeMonthsParse.call(this);
        }
        if (isStrict) {
          return this._monthsStrictRegex;
        } else {
          return this._monthsRegex;
        }
      } else {
        if (!hasOwnProp(this, '_monthsRegex')) {
          this._monthsRegex = defaultMonthsRegex;
        }
        return this._monthsStrictRegex && isStrict ? this._monthsStrictRegex : this._monthsRegex;
      }
    }
    function computeMonthsParse() {
      function cmpLenRev(a, b) {
        return b.length - a.length;
      }
      var shortPieces = [],
        longPieces = [],
        mixedPieces = [],
        i,
        mom;
      for (i = 0; i < 12; i++) {
        // make the regex if we don't have it already
        mom = createUTC([2000, i]);
        shortPieces.push(this.monthsShort(mom, ''));
        longPieces.push(this.months(mom, ''));
        mixedPieces.push(this.months(mom, ''));
        mixedPieces.push(this.monthsShort(mom, ''));
      }
      // Sorting makes sure if one month (or abbr) is a prefix of another it
      // will match the longer piece.
      shortPieces.sort(cmpLenRev);
      longPieces.sort(cmpLenRev);
      mixedPieces.sort(cmpLenRev);
      for (i = 0; i < 12; i++) {
        shortPieces[i] = regexEscape(shortPieces[i]);
        longPieces[i] = regexEscape(longPieces[i]);
      }
      for (i = 0; i < 24; i++) {
        mixedPieces[i] = regexEscape(mixedPieces[i]);
      }
      this._monthsRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
      this._monthsShortRegex = this._monthsRegex;
      this._monthsStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
      this._monthsShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
    }

    // FORMATTING

    addFormatToken('Y', 0, 0, function () {
      var y = this.year();
      return y <= 9999 ? zeroFill(y, 4) : '+' + y;
    });
    addFormatToken(0, ['YY', 2], 0, function () {
      return this.year() % 100;
    });
    addFormatToken(0, ['YYYY', 4], 0, 'year');
    addFormatToken(0, ['YYYYY', 5], 0, 'year');
    addFormatToken(0, ['YYYYYY', 6, true], 0, 'year');

    // ALIASES

    addUnitAlias('year', 'y');

    // PRIORITIES

    addUnitPriority('year', 1);

    // PARSING

    addRegexToken('Y', matchSigned);
    addRegexToken('YY', match1to2, match2);
    addRegexToken('YYYY', match1to4, match4);
    addRegexToken('YYYYY', match1to6, match6);
    addRegexToken('YYYYYY', match1to6, match6);
    addParseToken(['YYYYY', 'YYYYYY'], YEAR);
    addParseToken('YYYY', function (input, array) {
      array[YEAR] = input.length === 2 ? hooks.parseTwoDigitYear(input) : toInt(input);
    });
    addParseToken('YY', function (input, array) {
      array[YEAR] = hooks.parseTwoDigitYear(input);
    });
    addParseToken('Y', function (input, array) {
      array[YEAR] = parseInt(input, 10);
    });

    // HELPERS

    function daysInYear(year) {
      return isLeapYear(year) ? 366 : 365;
    }

    // HOOKS

    hooks.parseTwoDigitYear = function (input) {
      return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
    };

    // MOMENTS

    var getSetYear = makeGetSet('FullYear', true);
    function getIsLeapYear() {
      return isLeapYear(this.year());
    }
    function createDate(y, m, d, h, M, s, ms) {
      // can't just apply() to create a date:
      // https://stackoverflow.com/q/181348
      var date;
      // the date constructor remaps years 0-99 to 1900-1999
      if (y < 100 && y >= 0) {
        // preserve leap years using a full 400 year cycle, then reset
        date = new Date(y + 400, m, d, h, M, s, ms);
        if (isFinite(date.getFullYear())) {
          date.setFullYear(y);
        }
      } else {
        date = new Date(y, m, d, h, M, s, ms);
      }
      return date;
    }
    function createUTCDate(y) {
      var date, args;
      // the Date.UTC function remaps years 0-99 to 1900-1999
      if (y < 100 && y >= 0) {
        args = Array.prototype.slice.call(arguments);
        // preserve leap years using a full 400 year cycle, then reset
        args[0] = y + 400;
        date = new Date(Date.UTC.apply(null, args));
        if (isFinite(date.getUTCFullYear())) {
          date.setUTCFullYear(y);
        }
      } else {
        date = new Date(Date.UTC.apply(null, arguments));
      }
      return date;
    }

    // start-of-first-week - start-of-year
    function firstWeekOffset(year, dow, doy) {
      var
        // first-week day -- which january is always in the first week (4 for iso, 1 for other)
        fwd = 7 + dow - doy,
        // first-week day local weekday -- which local weekday is fwd
        fwdlw = (7 + createUTCDate(year, 0, fwd).getUTCDay() - dow) % 7;
      return -fwdlw + fwd - 1;
    }

    // https://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
    function dayOfYearFromWeeks(year, week, weekday, dow, doy) {
      var localWeekday = (7 + weekday - dow) % 7,
        weekOffset = firstWeekOffset(year, dow, doy),
        dayOfYear = 1 + 7 * (week - 1) + localWeekday + weekOffset,
        resYear,
        resDayOfYear;
      if (dayOfYear <= 0) {
        resYear = year - 1;
        resDayOfYear = daysInYear(resYear) + dayOfYear;
      } else if (dayOfYear > daysInYear(year)) {
        resYear = year + 1;
        resDayOfYear = dayOfYear - daysInYear(year);
      } else {
        resYear = year;
        resDayOfYear = dayOfYear;
      }
      return {
        year: resYear,
        dayOfYear: resDayOfYear
      };
    }
    function weekOfYear(mom, dow, doy) {
      var weekOffset = firstWeekOffset(mom.year(), dow, doy),
        week = Math.floor((mom.dayOfYear() - weekOffset - 1) / 7) + 1,
        resWeek,
        resYear;
      if (week < 1) {
        resYear = mom.year() - 1;
        resWeek = week + weeksInYear(resYear, dow, doy);
      } else if (week > weeksInYear(mom.year(), dow, doy)) {
        resWeek = week - weeksInYear(mom.year(), dow, doy);
        resYear = mom.year() + 1;
      } else {
        resYear = mom.year();
        resWeek = week;
      }
      return {
        week: resWeek,
        year: resYear
      };
    }
    function weeksInYear(year, dow, doy) {
      var weekOffset = firstWeekOffset(year, dow, doy),
        weekOffsetNext = firstWeekOffset(year + 1, dow, doy);
      return (daysInYear(year) - weekOffset + weekOffsetNext) / 7;
    }

    // FORMATTING

    addFormatToken('w', ['ww', 2], 'wo', 'week');
    addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek');

    // ALIASES

    addUnitAlias('week', 'w');
    addUnitAlias('isoWeek', 'W');

    // PRIORITIES

    addUnitPriority('week', 5);
    addUnitPriority('isoWeek', 5);

    // PARSING

    addRegexToken('w', match1to2);
    addRegexToken('ww', match1to2, match2);
    addRegexToken('W', match1to2);
    addRegexToken('WW', match1to2, match2);
    addWeekParseToken(['w', 'ww', 'W', 'WW'], function (input, week, config, token) {
      week[token.substr(0, 1)] = toInt(input);
    });

    // HELPERS

    // LOCALES

    function localeWeek(mom) {
      return weekOfYear(mom, this._week.dow, this._week.doy).week;
    }
    var defaultLocaleWeek = {
      dow: 0,
      // Sunday is the first day of the week.
      doy: 6 // The week that contains Jan 6th is the first week of the year.
    };
    function localeFirstDayOfWeek() {
      return this._week.dow;
    }
    function localeFirstDayOfYear() {
      return this._week.doy;
    }

    // MOMENTS

    function getSetWeek(input) {
      var week = this.localeData().week(this);
      return input == null ? week : this.add((input - week) * 7, 'd');
    }
    function getSetISOWeek(input) {
      var week = weekOfYear(this, 1, 4).week;
      return input == null ? week : this.add((input - week) * 7, 'd');
    }

    // FORMATTING

    addFormatToken('d', 0, 'do', 'day');
    addFormatToken('dd', 0, 0, function (format) {
      return this.localeData().weekdaysMin(this, format);
    });
    addFormatToken('ddd', 0, 0, function (format) {
      return this.localeData().weekdaysShort(this, format);
    });
    addFormatToken('dddd', 0, 0, function (format) {
      return this.localeData().weekdays(this, format);
    });
    addFormatToken('e', 0, 0, 'weekday');
    addFormatToken('E', 0, 0, 'isoWeekday');

    // ALIASES

    addUnitAlias('day', 'd');
    addUnitAlias('weekday', 'e');
    addUnitAlias('isoWeekday', 'E');

    // PRIORITY
    addUnitPriority('day', 11);
    addUnitPriority('weekday', 11);
    addUnitPriority('isoWeekday', 11);

    // PARSING

    addRegexToken('d', match1to2);
    addRegexToken('e', match1to2);
    addRegexToken('E', match1to2);
    addRegexToken('dd', function (isStrict, locale) {
      return locale.weekdaysMinRegex(isStrict);
    });
    addRegexToken('ddd', function (isStrict, locale) {
      return locale.weekdaysShortRegex(isStrict);
    });
    addRegexToken('dddd', function (isStrict, locale) {
      return locale.weekdaysRegex(isStrict);
    });
    addWeekParseToken(['dd', 'ddd', 'dddd'], function (input, week, config, token) {
      var weekday = config._locale.weekdaysParse(input, token, config._strict);
      // if we didn't get a weekday name, mark the date as invalid
      if (weekday != null) {
        week.d = weekday;
      } else {
        getParsingFlags(config).invalidWeekday = input;
      }
    });
    addWeekParseToken(['d', 'e', 'E'], function (input, week, config, token) {
      week[token] = toInt(input);
    });

    // HELPERS

    function parseWeekday(input, locale) {
      if (typeof input !== 'string') {
        return input;
      }
      if (!isNaN(input)) {
        return parseInt(input, 10);
      }
      input = locale.weekdaysParse(input);
      if (typeof input === 'number') {
        return input;
      }
      return null;
    }
    function parseIsoWeekday(input, locale) {
      if (typeof input === 'string') {
        return locale.weekdaysParse(input) % 7 || 7;
      }
      return isNaN(input) ? null : input;
    }

    // LOCALES
    function shiftWeekdays(ws, n) {
      return ws.slice(n, 7).concat(ws.slice(0, n));
    }
    var defaultLocaleWeekdays = 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_'),
      defaultLocaleWeekdaysShort = 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
      defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
      defaultWeekdaysRegex = matchWord,
      defaultWeekdaysShortRegex = matchWord,
      defaultWeekdaysMinRegex = matchWord;
    function localeWeekdays(m, format) {
      var weekdays = isArray(this._weekdays) ? this._weekdays : this._weekdays[m && m !== true && this._weekdays.isFormat.test(format) ? 'format' : 'standalone'];
      return m === true ? shiftWeekdays(weekdays, this._week.dow) : m ? weekdays[m.day()] : weekdays;
    }
    function localeWeekdaysShort(m) {
      return m === true ? shiftWeekdays(this._weekdaysShort, this._week.dow) : m ? this._weekdaysShort[m.day()] : this._weekdaysShort;
    }
    function localeWeekdaysMin(m) {
      return m === true ? shiftWeekdays(this._weekdaysMin, this._week.dow) : m ? this._weekdaysMin[m.day()] : this._weekdaysMin;
    }
    function handleStrictParse$1(weekdayName, format, strict) {
      var i,
        ii,
        mom,
        llc = weekdayName.toLocaleLowerCase();
      if (!this._weekdaysParse) {
        this._weekdaysParse = [];
        this._shortWeekdaysParse = [];
        this._minWeekdaysParse = [];
        for (i = 0; i < 7; ++i) {
          mom = createUTC([2000, 1]).day(i);
          this._minWeekdaysParse[i] = this.weekdaysMin(mom, '').toLocaleLowerCase();
          this._shortWeekdaysParse[i] = this.weekdaysShort(mom, '').toLocaleLowerCase();
          this._weekdaysParse[i] = this.weekdays(mom, '').toLocaleLowerCase();
        }
      }
      if (strict) {
        if (format === 'dddd') {
          ii = indexOf.call(this._weekdaysParse, llc);
          return ii !== -1 ? ii : null;
        } else if (format === 'ddd') {
          ii = indexOf.call(this._shortWeekdaysParse, llc);
          return ii !== -1 ? ii : null;
        } else {
          ii = indexOf.call(this._minWeekdaysParse, llc);
          return ii !== -1 ? ii : null;
        }
      } else {
        if (format === 'dddd') {
          ii = indexOf.call(this._weekdaysParse, llc);
          if (ii !== -1) {
            return ii;
          }
          ii = indexOf.call(this._shortWeekdaysParse, llc);
          if (ii !== -1) {
            return ii;
          }
          ii = indexOf.call(this._minWeekdaysParse, llc);
          return ii !== -1 ? ii : null;
        } else if (format === 'ddd') {
          ii = indexOf.call(this._shortWeekdaysParse, llc);
          if (ii !== -1) {
            return ii;
          }
          ii = indexOf.call(this._weekdaysParse, llc);
          if (ii !== -1) {
            return ii;
          }
          ii = indexOf.call(this._minWeekdaysParse, llc);
          return ii !== -1 ? ii : null;
        } else {
          ii = indexOf.call(this._minWeekdaysParse, llc);
          if (ii !== -1) {
            return ii;
          }
          ii = indexOf.call(this._weekdaysParse, llc);
          if (ii !== -1) {
            return ii;
          }
          ii = indexOf.call(this._shortWeekdaysParse, llc);
          return ii !== -1 ? ii : null;
        }
      }
    }
    function localeWeekdaysParse(weekdayName, format, strict) {
      var i, mom, regex;
      if (this._weekdaysParseExact) {
        return handleStrictParse$1.call(this, weekdayName, format, strict);
      }
      if (!this._weekdaysParse) {
        this._weekdaysParse = [];
        this._minWeekdaysParse = [];
        this._shortWeekdaysParse = [];
        this._fullWeekdaysParse = [];
      }
      for (i = 0; i < 7; i++) {
        // make the regex if we don't have it already

        mom = createUTC([2000, 1]).day(i);
        if (strict && !this._fullWeekdaysParse[i]) {
          this._fullWeekdaysParse[i] = new RegExp('^' + this.weekdays(mom, '').replace('.', '\\.?') + '$', 'i');
          this._shortWeekdaysParse[i] = new RegExp('^' + this.weekdaysShort(mom, '').replace('.', '\\.?') + '$', 'i');
          this._minWeekdaysParse[i] = new RegExp('^' + this.weekdaysMin(mom, '').replace('.', '\\.?') + '$', 'i');
        }
        if (!this._weekdaysParse[i]) {
          regex = '^' + this.weekdays(mom, '') + '|^' + this.weekdaysShort(mom, '') + '|^' + this.weekdaysMin(mom, '');
          this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
        }
        // test the regex
        if (strict && format === 'dddd' && this._fullWeekdaysParse[i].test(weekdayName)) {
          return i;
        } else if (strict && format === 'ddd' && this._shortWeekdaysParse[i].test(weekdayName)) {
          return i;
        } else if (strict && format === 'dd' && this._minWeekdaysParse[i].test(weekdayName)) {
          return i;
        } else if (!strict && this._weekdaysParse[i].test(weekdayName)) {
          return i;
        }
      }
    }

    // MOMENTS

    function getSetDayOfWeek(input) {
      if (!this.isValid()) {
        return input != null ? this : NaN;
      }
      var day = this._isUTC ? this._d.getUTCDay() : this._d.getDay();
      if (input != null) {
        input = parseWeekday(input, this.localeData());
        return this.add(input - day, 'd');
      } else {
        return day;
      }
    }
    function getSetLocaleDayOfWeek(input) {
      if (!this.isValid()) {
        return input != null ? this : NaN;
      }
      var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;
      return input == null ? weekday : this.add(input - weekday, 'd');
    }
    function getSetISODayOfWeek(input) {
      if (!this.isValid()) {
        return input != null ? this : NaN;
      }

      // behaves the same as moment#day except
      // as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
      // as a setter, sunday should belong to the previous week.

      if (input != null) {
        var weekday = parseIsoWeekday(input, this.localeData());
        return this.day(this.day() % 7 ? weekday : weekday - 7);
      } else {
        return this.day() || 7;
      }
    }
    function weekdaysRegex(isStrict) {
      if (this._weekdaysParseExact) {
        if (!hasOwnProp(this, '_weekdaysRegex')) {
          computeWeekdaysParse.call(this);
        }
        if (isStrict) {
          return this._weekdaysStrictRegex;
        } else {
          return this._weekdaysRegex;
        }
      } else {
        if (!hasOwnProp(this, '_weekdaysRegex')) {
          this._weekdaysRegex = defaultWeekdaysRegex;
        }
        return this._weekdaysStrictRegex && isStrict ? this._weekdaysStrictRegex : this._weekdaysRegex;
      }
    }
    function weekdaysShortRegex(isStrict) {
      if (this._weekdaysParseExact) {
        if (!hasOwnProp(this, '_weekdaysRegex')) {
          computeWeekdaysParse.call(this);
        }
        if (isStrict) {
          return this._weekdaysShortStrictRegex;
        } else {
          return this._weekdaysShortRegex;
        }
      } else {
        if (!hasOwnProp(this, '_weekdaysShortRegex')) {
          this._weekdaysShortRegex = defaultWeekdaysShortRegex;
        }
        return this._weekdaysShortStrictRegex && isStrict ? this._weekdaysShortStrictRegex : this._weekdaysShortRegex;
      }
    }
    function weekdaysMinRegex(isStrict) {
      if (this._weekdaysParseExact) {
        if (!hasOwnProp(this, '_weekdaysRegex')) {
          computeWeekdaysParse.call(this);
        }
        if (isStrict) {
          return this._weekdaysMinStrictRegex;
        } else {
          return this._weekdaysMinRegex;
        }
      } else {
        if (!hasOwnProp(this, '_weekdaysMinRegex')) {
          this._weekdaysMinRegex = defaultWeekdaysMinRegex;
        }
        return this._weekdaysMinStrictRegex && isStrict ? this._weekdaysMinStrictRegex : this._weekdaysMinRegex;
      }
    }
    function computeWeekdaysParse() {
      function cmpLenRev(a, b) {
        return b.length - a.length;
      }
      var minPieces = [],
        shortPieces = [],
        longPieces = [],
        mixedPieces = [],
        i,
        mom,
        minp,
        shortp,
        longp;
      for (i = 0; i < 7; i++) {
        // make the regex if we don't have it already
        mom = createUTC([2000, 1]).day(i);
        minp = regexEscape(this.weekdaysMin(mom, ''));
        shortp = regexEscape(this.weekdaysShort(mom, ''));
        longp = regexEscape(this.weekdays(mom, ''));
        minPieces.push(minp);
        shortPieces.push(shortp);
        longPieces.push(longp);
        mixedPieces.push(minp);
        mixedPieces.push(shortp);
        mixedPieces.push(longp);
      }
      // Sorting makes sure if one weekday (or abbr) is a prefix of another it
      // will match the longer piece.
      minPieces.sort(cmpLenRev);
      shortPieces.sort(cmpLenRev);
      longPieces.sort(cmpLenRev);
      mixedPieces.sort(cmpLenRev);
      this._weekdaysRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
      this._weekdaysShortRegex = this._weekdaysRegex;
      this._weekdaysMinRegex = this._weekdaysRegex;
      this._weekdaysStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
      this._weekdaysShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
      this._weekdaysMinStrictRegex = new RegExp('^(' + minPieces.join('|') + ')', 'i');
    }

    // FORMATTING

    function hFormat() {
      return this.hours() % 12 || 12;
    }
    function kFormat() {
      return this.hours() || 24;
    }
    addFormatToken('H', ['HH', 2], 0, 'hour');
    addFormatToken('h', ['hh', 2], 0, hFormat);
    addFormatToken('k', ['kk', 2], 0, kFormat);
    addFormatToken('hmm', 0, 0, function () {
      return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2);
    });
    addFormatToken('hmmss', 0, 0, function () {
      return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2) + zeroFill(this.seconds(), 2);
    });
    addFormatToken('Hmm', 0, 0, function () {
      return '' + this.hours() + zeroFill(this.minutes(), 2);
    });
    addFormatToken('Hmmss', 0, 0, function () {
      return '' + this.hours() + zeroFill(this.minutes(), 2) + zeroFill(this.seconds(), 2);
    });
    function meridiem(token, lowercase) {
      addFormatToken(token, 0, 0, function () {
        return this.localeData().meridiem(this.hours(), this.minutes(), lowercase);
      });
    }
    meridiem('a', true);
    meridiem('A', false);

    // ALIASES

    addUnitAlias('hour', 'h');

    // PRIORITY
    addUnitPriority('hour', 13);

    // PARSING

    function matchMeridiem(isStrict, locale) {
      return locale._meridiemParse;
    }
    addRegexToken('a', matchMeridiem);
    addRegexToken('A', matchMeridiem);
    addRegexToken('H', match1to2);
    addRegexToken('h', match1to2);
    addRegexToken('k', match1to2);
    addRegexToken('HH', match1to2, match2);
    addRegexToken('hh', match1to2, match2);
    addRegexToken('kk', match1to2, match2);
    addRegexToken('hmm', match3to4);
    addRegexToken('hmmss', match5to6);
    addRegexToken('Hmm', match3to4);
    addRegexToken('Hmmss', match5to6);
    addParseToken(['H', 'HH'], HOUR);
    addParseToken(['k', 'kk'], function (input, array, config) {
      var kInput = toInt(input);
      array[HOUR] = kInput === 24 ? 0 : kInput;
    });
    addParseToken(['a', 'A'], function (input, array, config) {
      config._isPm = config._locale.isPM(input);
      config._meridiem = input;
    });
    addParseToken(['h', 'hh'], function (input, array, config) {
      array[HOUR] = toInt(input);
      getParsingFlags(config).bigHour = true;
    });
    addParseToken('hmm', function (input, array, config) {
      var pos = input.length - 2;
      array[HOUR] = toInt(input.substr(0, pos));
      array[MINUTE] = toInt(input.substr(pos));
      getParsingFlags(config).bigHour = true;
    });
    addParseToken('hmmss', function (input, array, config) {
      var pos1 = input.length - 4,
        pos2 = input.length - 2;
      array[HOUR] = toInt(input.substr(0, pos1));
      array[MINUTE] = toInt(input.substr(pos1, 2));
      array[SECOND] = toInt(input.substr(pos2));
      getParsingFlags(config).bigHour = true;
    });
    addParseToken('Hmm', function (input, array, config) {
      var pos = input.length - 2;
      array[HOUR] = toInt(input.substr(0, pos));
      array[MINUTE] = toInt(input.substr(pos));
    });
    addParseToken('Hmmss', function (input, array, config) {
      var pos1 = input.length - 4,
        pos2 = input.length - 2;
      array[HOUR] = toInt(input.substr(0, pos1));
      array[MINUTE] = toInt(input.substr(pos1, 2));
      array[SECOND] = toInt(input.substr(pos2));
    });

    // LOCALES

    function localeIsPM(input) {
      // IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
      // Using charAt should be more compatible.
      return (input + '').toLowerCase().charAt(0) === 'p';
    }
    var defaultLocaleMeridiemParse = /[ap]\.?m?\.?/i,
      // Setting the hour should keep the time, because the user explicitly
      // specified which hour they want. So trying to maintain the same hour (in
      // a new timezone) makes sense. Adding/subtracting hours does not follow
      // this rule.
      getSetHour = makeGetSet('Hours', true);
    function localeMeridiem(hours, minutes, isLower) {
      if (hours > 11) {
        return isLower ? 'pm' : 'PM';
      } else {
        return isLower ? 'am' : 'AM';
      }
    }
    var baseConfig = {
      calendar: defaultCalendar,
      longDateFormat: defaultLongDateFormat,
      invalidDate: defaultInvalidDate,
      ordinal: defaultOrdinal,
      dayOfMonthOrdinalParse: defaultDayOfMonthOrdinalParse,
      relativeTime: defaultRelativeTime,
      months: defaultLocaleMonths,
      monthsShort: defaultLocaleMonthsShort,
      week: defaultLocaleWeek,
      weekdays: defaultLocaleWeekdays,
      weekdaysMin: defaultLocaleWeekdaysMin,
      weekdaysShort: defaultLocaleWeekdaysShort,
      meridiemParse: defaultLocaleMeridiemParse
    };

    // internal storage for locale config files
    var locales = {},
      localeFamilies = {},
      globalLocale;
    function commonPrefix(arr1, arr2) {
      var i,
        minl = Math.min(arr1.length, arr2.length);
      for (i = 0; i < minl; i += 1) {
        if (arr1[i] !== arr2[i]) {
          return i;
        }
      }
      return minl;
    }
    function normalizeLocale(key) {
      return key ? key.toLowerCase().replace('_', '-') : key;
    }

    // pick the locale from the array
    // try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each
    // substring from most specific to least, but move to the next array item if it's a more specific variant than the current root
    function chooseLocale(names) {
      var i = 0,
        j,
        next,
        locale,
        split;
      while (i < names.length) {
        split = normalizeLocale(names[i]).split('-');
        j = split.length;
        next = normalizeLocale(names[i + 1]);
        next = next ? next.split('-') : null;
        while (j > 0) {
          locale = loadLocale(split.slice(0, j).join('-'));
          if (locale) {
            return locale;
          }
          if (next && next.length >= j && commonPrefix(split, next) >= j - 1) {
            //the next array item is better than a shallower substring of this one
            break;
          }
          j--;
        }
        i++;
      }
      return globalLocale;
    }
    function loadLocale(name) {
      var oldLocale = null,
        aliasedRequire;
      // TODO: Find a better way to register and load all the locales in Node
      if (locales[name] === undefined && 'object' !== 'undefined' && module && module.exports) {
        try {
          oldLocale = globalLocale._abbr;
          aliasedRequire = commonjsRequire;
          aliasedRequire('./locale/' + name);
          getSetGlobalLocale(oldLocale);
        } catch (e) {
          // mark as not found to avoid repeating expensive file require call causing high CPU
          // when trying to find en-US, en_US, en-us for every format call
          locales[name] = null; // null means not found
        }
      }
      return locales[name];
    }

    // This function will load locale and then set the global locale.  If
    // no arguments are passed in, it will simply return the current global
    // locale key.
    function getSetGlobalLocale(key, values) {
      var data;
      if (key) {
        if (isUndefined(values)) {
          data = getLocale(key);
        } else {
          data = defineLocale(key, values);
        }
        if (data) {
          // moment.duration._locale = moment._locale = data;
          globalLocale = data;
        } else {
          if (typeof console !== 'undefined' && console.warn) {
            //warn user if arguments are passed but the locale could not be set
            console.warn('Locale ' + key + ' not found. Did you forget to load it?');
          }
        }
      }
      return globalLocale._abbr;
    }
    function defineLocale(name, config) {
      if (config !== null) {
        var locale,
          parentConfig = baseConfig;
        config.abbr = name;
        if (locales[name] != null) {
          deprecateSimple('defineLocaleOverride', 'use moment.updateLocale(localeName, config) to change ' + 'an existing locale. moment.defineLocale(localeName, ' + 'config) should only be used for creating a new locale ' + 'See http://momentjs.com/guides/#/warnings/define-locale/ for more info.');
          parentConfig = locales[name]._config;
        } else if (config.parentLocale != null) {
          if (locales[config.parentLocale] != null) {
            parentConfig = locales[config.parentLocale]._config;
          } else {
            locale = loadLocale(config.parentLocale);
            if (locale != null) {
              parentConfig = locale._config;
            } else {
              if (!localeFamilies[config.parentLocale]) {
                localeFamilies[config.parentLocale] = [];
              }
              localeFamilies[config.parentLocale].push({
                name: name,
                config: config
              });
              return null;
            }
          }
        }
        locales[name] = new Locale(mergeConfigs(parentConfig, config));
        if (localeFamilies[name]) {
          localeFamilies[name].forEach(function (x) {
            defineLocale(x.name, x.config);
          });
        }

        // backwards compat for now: also set the locale
        // make sure we set the locale AFTER all child locales have been
        // created, so we won't end up with the child locale set.
        getSetGlobalLocale(name);
        return locales[name];
      } else {
        // useful for testing
        delete locales[name];
        return null;
      }
    }
    function updateLocale(name, config) {
      if (config != null) {
        var locale,
          tmpLocale,
          parentConfig = baseConfig;
        if (locales[name] != null && locales[name].parentLocale != null) {
          // Update existing child locale in-place to avoid memory-leaks
          locales[name].set(mergeConfigs(locales[name]._config, config));
        } else {
          // MERGE
          tmpLocale = loadLocale(name);
          if (tmpLocale != null) {
            parentConfig = tmpLocale._config;
          }
          config = mergeConfigs(parentConfig, config);
          if (tmpLocale == null) {
            // updateLocale is called for creating a new locale
            // Set abbr so it will have a name (getters return
            // undefined otherwise).
            config.abbr = name;
          }
          locale = new Locale(config);
          locale.parentLocale = locales[name];
          locales[name] = locale;
        }

        // backwards compat for now: also set the locale
        getSetGlobalLocale(name);
      } else {
        // pass null for config to unupdate, useful for tests
        if (locales[name] != null) {
          if (locales[name].parentLocale != null) {
            locales[name] = locales[name].parentLocale;
            if (name === getSetGlobalLocale()) {
              getSetGlobalLocale(name);
            }
          } else if (locales[name] != null) {
            delete locales[name];
          }
        }
      }
      return locales[name];
    }

    // returns locale data
    function getLocale(key) {
      var locale;
      if (key && key._locale && key._locale._abbr) {
        key = key._locale._abbr;
      }
      if (!key) {
        return globalLocale;
      }
      if (!isArray(key)) {
        //short-circuit everything else
        locale = loadLocale(key);
        if (locale) {
          return locale;
        }
        key = [key];
      }
      return chooseLocale(key);
    }
    function listLocales() {
      return keys(locales);
    }
    function checkOverflow(m) {
      var overflow,
        a = m._a;
      if (a && getParsingFlags(m).overflow === -2) {
        overflow = a[MONTH] < 0 || a[MONTH] > 11 ? MONTH : a[DATE] < 1 || a[DATE] > daysInMonth(a[YEAR], a[MONTH]) ? DATE : a[HOUR] < 0 || a[HOUR] > 24 || a[HOUR] === 24 && (a[MINUTE] !== 0 || a[SECOND] !== 0 || a[MILLISECOND] !== 0) ? HOUR : a[MINUTE] < 0 || a[MINUTE] > 59 ? MINUTE : a[SECOND] < 0 || a[SECOND] > 59 ? SECOND : a[MILLISECOND] < 0 || a[MILLISECOND] > 999 ? MILLISECOND : -1;
        if (getParsingFlags(m)._overflowDayOfYear && (overflow < YEAR || overflow > DATE)) {
          overflow = DATE;
        }
        if (getParsingFlags(m)._overflowWeeks && overflow === -1) {
          overflow = WEEK;
        }
        if (getParsingFlags(m)._overflowWeekday && overflow === -1) {
          overflow = WEEKDAY;
        }
        getParsingFlags(m).overflow = overflow;
      }
      return m;
    }

    // iso 8601 regex
    // 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
    var extendedIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})-(?:\d\d-\d\d|W\d\d-\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?::\d\d(?::\d\d(?:[.,]\d+)?)?)?)([+-]\d\d(?::?\d\d)?|\s*Z)?)?$/,
      basicIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})(?:\d\d\d\d|W\d\d\d|W\d\d|\d\d\d|\d\d|))(?:(T| )(\d\d(?:\d\d(?:\d\d(?:[.,]\d+)?)?)?)([+-]\d\d(?::?\d\d)?|\s*Z)?)?$/,
      tzRegex = /Z|[+-]\d\d(?::?\d\d)?/,
      isoDates = [['YYYYYY-MM-DD', /[+-]\d{6}-\d\d-\d\d/], ['YYYY-MM-DD', /\d{4}-\d\d-\d\d/], ['GGGG-[W]WW-E', /\d{4}-W\d\d-\d/], ['GGGG-[W]WW', /\d{4}-W\d\d/, false], ['YYYY-DDD', /\d{4}-\d{3}/], ['YYYY-MM', /\d{4}-\d\d/, false], ['YYYYYYMMDD', /[+-]\d{10}/], ['YYYYMMDD', /\d{8}/], ['GGGG[W]WWE', /\d{4}W\d{3}/], ['GGGG[W]WW', /\d{4}W\d{2}/, false], ['YYYYDDD', /\d{7}/], ['YYYYMM', /\d{6}/, false], ['YYYY', /\d{4}/, false]],
      // iso time formats and regexes
      isoTimes = [['HH:mm:ss.SSSS', /\d\d:\d\d:\d\d\.\d+/], ['HH:mm:ss,SSSS', /\d\d:\d\d:\d\d,\d+/], ['HH:mm:ss', /\d\d:\d\d:\d\d/], ['HH:mm', /\d\d:\d\d/], ['HHmmss.SSSS', /\d\d\d\d\d\d\.\d+/], ['HHmmss,SSSS', /\d\d\d\d\d\d,\d+/], ['HHmmss', /\d\d\d\d\d\d/], ['HHmm', /\d\d\d\d/], ['HH', /\d\d/]],
      aspNetJsonRegex = /^\/?Date\((-?\d+)/i,
      // RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3
      rfc2822 = /^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\s)?(\d{1,2})\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(\d{2,4})\s(\d\d):(\d\d)(?::(\d\d))?\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|([+-]\d{4}))$/,
      obsOffsets = {
        UT: 0,
        GMT: 0,
        EDT: -4 * 60,
        EST: -5 * 60,
        CDT: -5 * 60,
        CST: -6 * 60,
        MDT: -6 * 60,
        MST: -7 * 60,
        PDT: -7 * 60,
        PST: -8 * 60
      };

    // date from iso format
    function configFromISO(config) {
      var i,
        l,
        string = config._i,
        match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),
        allowTime,
        dateFormat,
        timeFormat,
        tzFormat;
      if (match) {
        getParsingFlags(config).iso = true;
        for (i = 0, l = isoDates.length; i < l; i++) {
          if (isoDates[i][1].exec(match[1])) {
            dateFormat = isoDates[i][0];
            allowTime = isoDates[i][2] !== false;
            break;
          }
        }
        if (dateFormat == null) {
          config._isValid = false;
          return;
        }
        if (match[3]) {
          for (i = 0, l = isoTimes.length; i < l; i++) {
            if (isoTimes[i][1].exec(match[3])) {
              // match[2] should be 'T' or space
              timeFormat = (match[2] || ' ') + isoTimes[i][0];
              break;
            }
          }
          if (timeFormat == null) {
            config._isValid = false;
            return;
          }
        }
        if (!allowTime && timeFormat != null) {
          config._isValid = false;
          return;
        }
        if (match[4]) {
          if (tzRegex.exec(match[4])) {
            tzFormat = 'Z';
          } else {
            config._isValid = false;
            return;
          }
        }
        config._f = dateFormat + (timeFormat || '') + (tzFormat || '');
        configFromStringAndFormat(config);
      } else {
        config._isValid = false;
      }
    }
    function extractFromRFC2822Strings(yearStr, monthStr, dayStr, hourStr, minuteStr, secondStr) {
      var result = [untruncateYear(yearStr), defaultLocaleMonthsShort.indexOf(monthStr), parseInt(dayStr, 10), parseInt(hourStr, 10), parseInt(minuteStr, 10)];
      if (secondStr) {
        result.push(parseInt(secondStr, 10));
      }
      return result;
    }
    function untruncateYear(yearStr) {
      var year = parseInt(yearStr, 10);
      if (year <= 49) {
        return 2000 + year;
      } else if (year <= 999) {
        return 1900 + year;
      }
      return year;
    }
    function preprocessRFC2822(s) {
      // Remove comments and folding whitespace and replace multiple-spaces with a single space
      return s.replace(/\([^)]*\)|[\n\t]/g, ' ').replace(/(\s\s+)/g, ' ').replace(/^\s\s*/, '').replace(/\s\s*$/, '');
    }
    function checkWeekday(weekdayStr, parsedInput, config) {
      if (weekdayStr) {
        // TODO: Replace the vanilla JS Date object with an independent day-of-week check.
        var weekdayProvided = defaultLocaleWeekdaysShort.indexOf(weekdayStr),
          weekdayActual = new Date(parsedInput[0], parsedInput[1], parsedInput[2]).getDay();
        if (weekdayProvided !== weekdayActual) {
          getParsingFlags(config).weekdayMismatch = true;
          config._isValid = false;
          return false;
        }
      }
      return true;
    }
    function calculateOffset(obsOffset, militaryOffset, numOffset) {
      if (obsOffset) {
        return obsOffsets[obsOffset];
      } else if (militaryOffset) {
        // the only allowed military tz is Z
        return 0;
      } else {
        var hm = parseInt(numOffset, 10),
          m = hm % 100,
          h = (hm - m) / 100;
        return h * 60 + m;
      }
    }

    // date and time from ref 2822 format
    function configFromRFC2822(config) {
      var match = rfc2822.exec(preprocessRFC2822(config._i)),
        parsedArray;
      if (match) {
        parsedArray = extractFromRFC2822Strings(match[4], match[3], match[2], match[5], match[6], match[7]);
        if (!checkWeekday(match[1], parsedArray, config)) {
          return;
        }
        config._a = parsedArray;
        config._tzm = calculateOffset(match[8], match[9], match[10]);
        config._d = createUTCDate.apply(null, config._a);
        config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
        getParsingFlags(config).rfc2822 = true;
      } else {
        config._isValid = false;
      }
    }

    // date from 1) ASP.NET, 2) ISO, 3) RFC 2822 formats, or 4) optional fallback if parsing isn't strict
    function configFromString(config) {
      var matched = aspNetJsonRegex.exec(config._i);
      if (matched !== null) {
        config._d = new Date(+matched[1]);
        return;
      }
      configFromISO(config);
      if (config._isValid === false) {
        delete config._isValid;
      } else {
        return;
      }
      configFromRFC2822(config);
      if (config._isValid === false) {
        delete config._isValid;
      } else {
        return;
      }
      if (config._strict) {
        config._isValid = false;
      } else {
        // Final attempt, use Input Fallback
        hooks.createFromInputFallback(config);
      }
    }
    hooks.createFromInputFallback = deprecate('value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' + 'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' + 'discouraged. Please refer to http://momentjs.com/guides/#/warnings/js-date/ for more info.', function (config) {
      config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
    });

    // Pick the first defined of two or three arguments.
    function defaults(a, b, c) {
      if (a != null) {
        return a;
      }
      if (b != null) {
        return b;
      }
      return c;
    }
    function currentDateArray(config) {
      // hooks is actually the exported moment object
      var nowValue = new Date(hooks.now());
      if (config._useUTC) {
        return [nowValue.getUTCFullYear(), nowValue.getUTCMonth(), nowValue.getUTCDate()];
      }
      return [nowValue.getFullYear(), nowValue.getMonth(), nowValue.getDate()];
    }

    // convert an array to a date.
    // the array should mirror the parameters below
    // note: all values past the year are optional and will default to the lowest possible value.
    // [year, month, day , hour, minute, second, millisecond]
    function configFromArray(config) {
      var i,
        date,
        input = [],
        currentDate,
        expectedWeekday,
        yearToUse;
      if (config._d) {
        return;
      }
      currentDate = currentDateArray(config);

      //compute day of the year from weeks and weekdays
      if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {
        dayOfYearFromWeekInfo(config);
      }

      //if the day of the year is set, figure out what it is
      if (config._dayOfYear != null) {
        yearToUse = defaults(config._a[YEAR], currentDate[YEAR]);
        if (config._dayOfYear > daysInYear(yearToUse) || config._dayOfYear === 0) {
          getParsingFlags(config)._overflowDayOfYear = true;
        }
        date = createUTCDate(yearToUse, 0, config._dayOfYear);
        config._a[MONTH] = date.getUTCMonth();
        config._a[DATE] = date.getUTCDate();
      }

      // Default to current date.
      // * if no year, month, day of month are given, default to today
      // * if day of month is given, default month and year
      // * if month is given, default only year
      // * if year is given, don't default anything
      for (i = 0; i < 3 && config._a[i] == null; ++i) {
        config._a[i] = input[i] = currentDate[i];
      }

      // Zero out whatever was not defaulted, including time
      for (; i < 7; i++) {
        config._a[i] = input[i] = config._a[i] == null ? i === 2 ? 1 : 0 : config._a[i];
      }

      // Check for 24:00:00.000
      if (config._a[HOUR] === 24 && config._a[MINUTE] === 0 && config._a[SECOND] === 0 && config._a[MILLISECOND] === 0) {
        config._nextDay = true;
        config._a[HOUR] = 0;
      }
      config._d = (config._useUTC ? createUTCDate : createDate).apply(null, input);
      expectedWeekday = config._useUTC ? config._d.getUTCDay() : config._d.getDay();

      // Apply timezone offset from input. The actual utcOffset can be changed
      // with parseZone.
      if (config._tzm != null) {
        config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
      }
      if (config._nextDay) {
        config._a[HOUR] = 24;
      }

      // check for mismatching day of week
      if (config._w && typeof config._w.d !== 'undefined' && config._w.d !== expectedWeekday) {
        getParsingFlags(config).weekdayMismatch = true;
      }
    }
    function dayOfYearFromWeekInfo(config) {
      var w, weekYear, week, weekday, dow, doy, temp, weekdayOverflow, curWeek;
      w = config._w;
      if (w.GG != null || w.W != null || w.E != null) {
        dow = 1;
        doy = 4;

        // TODO: We need to take the current isoWeekYear, but that depends on
        // how we interpret now (local, utc, fixed offset). So create
        // a now version of current config (take local/utc/offset flags, and
        // create now).
        weekYear = defaults(w.GG, config._a[YEAR], weekOfYear(createLocal(), 1, 4).year);
        week = defaults(w.W, 1);
        weekday = defaults(w.E, 1);
        if (weekday < 1 || weekday > 7) {
          weekdayOverflow = true;
        }
      } else {
        dow = config._locale._week.dow;
        doy = config._locale._week.doy;
        curWeek = weekOfYear(createLocal(), dow, doy);
        weekYear = defaults(w.gg, config._a[YEAR], curWeek.year);

        // Default to current week.
        week = defaults(w.w, curWeek.week);
        if (w.d != null) {
          // weekday -- low day numbers are considered next week
          weekday = w.d;
          if (weekday < 0 || weekday > 6) {
            weekdayOverflow = true;
          }
        } else if (w.e != null) {
          // local weekday -- counting starts from beginning of week
          weekday = w.e + dow;
          if (w.e < 0 || w.e > 6) {
            weekdayOverflow = true;
          }
        } else {
          // default to beginning of week
          weekday = dow;
        }
      }
      if (week < 1 || week > weeksInYear(weekYear, dow, doy)) {
        getParsingFlags(config)._overflowWeeks = true;
      } else if (weekdayOverflow != null) {
        getParsingFlags(config)._overflowWeekday = true;
      } else {
        temp = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy);
        config._a[YEAR] = temp.year;
        config._dayOfYear = temp.dayOfYear;
      }
    }

    // constant that refers to the ISO standard
    hooks.ISO_8601 = function () {};

    // constant that refers to the RFC 2822 form
    hooks.RFC_2822 = function () {};

    // date from string and format string
    function configFromStringAndFormat(config) {
      // TODO: Move this to another part of the creation flow to prevent circular deps
      if (config._f === hooks.ISO_8601) {
        configFromISO(config);
        return;
      }
      if (config._f === hooks.RFC_2822) {
        configFromRFC2822(config);
        return;
      }
      config._a = [];
      getParsingFlags(config).empty = true;

      // This array is used to make a Date, either with `new Date` or `Date.UTC`
      var string = '' + config._i,
        i,
        parsedInput,
        tokens,
        token,
        skipped,
        stringLength = string.length,
        totalParsedInputLength = 0,
        era;
      tokens = expandFormat(config._f, config._locale).match(formattingTokens) || [];
      for (i = 0; i < tokens.length; i++) {
        token = tokens[i];
        parsedInput = (string.match(getParseRegexForToken(token, config)) || [])[0];
        if (parsedInput) {
          skipped = string.substr(0, string.indexOf(parsedInput));
          if (skipped.length > 0) {
            getParsingFlags(config).unusedInput.push(skipped);
          }
          string = string.slice(string.indexOf(parsedInput) + parsedInput.length);
          totalParsedInputLength += parsedInput.length;
        }
        // don't parse if it's not a known token
        if (formatTokenFunctions[token]) {
          if (parsedInput) {
            getParsingFlags(config).empty = false;
          } else {
            getParsingFlags(config).unusedTokens.push(token);
          }
          addTimeToArrayFromToken(token, parsedInput, config);
        } else if (config._strict && !parsedInput) {
          getParsingFlags(config).unusedTokens.push(token);
        }
      }

      // add remaining unparsed input length to the string
      getParsingFlags(config).charsLeftOver = stringLength - totalParsedInputLength;
      if (string.length > 0) {
        getParsingFlags(config).unusedInput.push(string);
      }

      // clear _12h flag if hour is <= 12
      if (config._a[HOUR] <= 12 && getParsingFlags(config).bigHour === true && config._a[HOUR] > 0) {
        getParsingFlags(config).bigHour = undefined;
      }
      getParsingFlags(config).parsedDateParts = config._a.slice(0);
      getParsingFlags(config).meridiem = config._meridiem;
      // handle meridiem
      config._a[HOUR] = meridiemFixWrap(config._locale, config._a[HOUR], config._meridiem);

      // handle era
      era = getParsingFlags(config).era;
      if (era !== null) {
        config._a[YEAR] = config._locale.erasConvertYear(era, config._a[YEAR]);
      }
      configFromArray(config);
      checkOverflow(config);
    }
    function meridiemFixWrap(locale, hour, meridiem) {
      var isPm;
      if (meridiem == null) {
        // nothing to do
        return hour;
      }
      if (locale.meridiemHour != null) {
        return locale.meridiemHour(hour, meridiem);
      } else if (locale.isPM != null) {
        // Fallback
        isPm = locale.isPM(meridiem);
        if (isPm && hour < 12) {
          hour += 12;
        }
        if (!isPm && hour === 12) {
          hour = 0;
        }
        return hour;
      } else {
        // this is not supposed to happen
        return hour;
      }
    }

    // date from string and array of format strings
    function configFromStringAndArray(config) {
      var tempConfig,
        bestMoment,
        scoreToBeat,
        i,
        currentScore,
        validFormatFound,
        bestFormatIsValid = false;
      if (config._f.length === 0) {
        getParsingFlags(config).invalidFormat = true;
        config._d = new Date(NaN);
        return;
      }
      for (i = 0; i < config._f.length; i++) {
        currentScore = 0;
        validFormatFound = false;
        tempConfig = copyConfig({}, config);
        if (config._useUTC != null) {
          tempConfig._useUTC = config._useUTC;
        }
        tempConfig._f = config._f[i];
        configFromStringAndFormat(tempConfig);
        if (isValid(tempConfig)) {
          validFormatFound = true;
        }

        // if there is any input that was not parsed add a penalty for that format
        currentScore += getParsingFlags(tempConfig).charsLeftOver;

        //or tokens
        currentScore += getParsingFlags(tempConfig).unusedTokens.length * 10;
        getParsingFlags(tempConfig).score = currentScore;
        if (!bestFormatIsValid) {
          if (scoreToBeat == null || currentScore < scoreToBeat || validFormatFound) {
            scoreToBeat = currentScore;
            bestMoment = tempConfig;
            if (validFormatFound) {
              bestFormatIsValid = true;
            }
          }
        } else {
          if (currentScore < scoreToBeat) {
            scoreToBeat = currentScore;
            bestMoment = tempConfig;
          }
        }
      }
      extend(config, bestMoment || tempConfig);
    }
    function configFromObject(config) {
      if (config._d) {
        return;
      }
      var i = normalizeObjectUnits(config._i),
        dayOrDate = i.day === undefined ? i.date : i.day;
      config._a = map([i.year, i.month, dayOrDate, i.hour, i.minute, i.second, i.millisecond], function (obj) {
        return obj && parseInt(obj, 10);
      });
      configFromArray(config);
    }
    function createFromConfig(config) {
      var res = new Moment(checkOverflow(prepareConfig(config)));
      if (res._nextDay) {
        // Adding is smart enough around DST
        res.add(1, 'd');
        res._nextDay = undefined;
      }
      return res;
    }
    function prepareConfig(config) {
      var input = config._i,
        format = config._f;
      config._locale = config._locale || getLocale(config._l);
      if (input === null || format === undefined && input === '') {
        return createInvalid({
          nullInput: true
        });
      }
      if (typeof input === 'string') {
        config._i = input = config._locale.preparse(input);
      }
      if (isMoment(input)) {
        return new Moment(checkOverflow(input));
      } else if (isDate(input)) {
        config._d = input;
      } else if (isArray(format)) {
        configFromStringAndArray(config);
      } else if (format) {
        configFromStringAndFormat(config);
      } else {
        configFromInput(config);
      }
      if (!isValid(config)) {
        config._d = null;
      }
      return config;
    }
    function configFromInput(config) {
      var input = config._i;
      if (isUndefined(input)) {
        config._d = new Date(hooks.now());
      } else if (isDate(input)) {
        config._d = new Date(input.valueOf());
      } else if (typeof input === 'string') {
        configFromString(config);
      } else if (isArray(input)) {
        config._a = map(input.slice(0), function (obj) {
          return parseInt(obj, 10);
        });
        configFromArray(config);
      } else if (isObject(input)) {
        configFromObject(config);
      } else if (isNumber(input)) {
        // from milliseconds
        config._d = new Date(input);
      } else {
        hooks.createFromInputFallback(config);
      }
    }
    function createLocalOrUTC(input, format, locale, strict, isUTC) {
      var c = {};
      if (format === true || format === false) {
        strict = format;
        format = undefined;
      }
      if (locale === true || locale === false) {
        strict = locale;
        locale = undefined;
      }
      if (isObject(input) && isObjectEmpty(input) || isArray(input) && input.length === 0) {
        input = undefined;
      }
      // object construction must be done this way.
      // https://github.com/moment/moment/issues/1423
      c._isAMomentObject = true;
      c._useUTC = c._isUTC = isUTC;
      c._l = locale;
      c._i = input;
      c._f = format;
      c._strict = strict;
      return createFromConfig(c);
    }
    function createLocal(input, format, locale, strict) {
      return createLocalOrUTC(input, format, locale, strict, false);
    }
    var prototypeMin = deprecate('moment().min is deprecated, use moment.max instead. http://momentjs.com/guides/#/warnings/min-max/', function () {
        var other = createLocal.apply(null, arguments);
        if (this.isValid() && other.isValid()) {
          return other < this ? this : other;
        } else {
          return createInvalid();
        }
      }),
      prototypeMax = deprecate('moment().max is deprecated, use moment.min instead. http://momentjs.com/guides/#/warnings/min-max/', function () {
        var other = createLocal.apply(null, arguments);
        if (this.isValid() && other.isValid()) {
          return other > this ? this : other;
        } else {
          return createInvalid();
        }
      });

    // Pick a moment m from moments so that m[fn](other) is true for all
    // other. This relies on the function fn to be transitive.
    //
    // moments should either be an array of moment objects or an array, whose
    // first element is an array of moment objects.
    function pickBy(fn, moments) {
      var res, i;
      if (moments.length === 1 && isArray(moments[0])) {
        moments = moments[0];
      }
      if (!moments.length) {
        return createLocal();
      }
      res = moments[0];
      for (i = 1; i < moments.length; ++i) {
        if (!moments[i].isValid() || moments[i][fn](res)) {
          res = moments[i];
        }
      }
      return res;
    }

    // TODO: Use [].sort instead?
    function min() {
      var args = [].slice.call(arguments, 0);
      return pickBy('isBefore', args);
    }
    function max() {
      var args = [].slice.call(arguments, 0);
      return pickBy('isAfter', args);
    }
    var now = function () {
      return Date.now ? Date.now() : +new Date();
    };
    var ordering = ['year', 'quarter', 'month', 'week', 'day', 'hour', 'minute', 'second', 'millisecond'];
    function isDurationValid(m) {
      var key,
        unitHasDecimal = false,
        i;
      for (key in m) {
        if (hasOwnProp(m, key) && !(indexOf.call(ordering, key) !== -1 && (m[key] == null || !isNaN(m[key])))) {
          return false;
        }
      }
      for (i = 0; i < ordering.length; ++i) {
        if (m[ordering[i]]) {
          if (unitHasDecimal) {
            return false; // only allow non-integers for smallest unit
          }
          if (parseFloat(m[ordering[i]]) !== toInt(m[ordering[i]])) {
            unitHasDecimal = true;
          }
        }
      }
      return true;
    }
    function isValid$1() {
      return this._isValid;
    }
    function createInvalid$1() {
      return createDuration(NaN);
    }
    function Duration(duration) {
      var normalizedInput = normalizeObjectUnits(duration),
        years = normalizedInput.year || 0,
        quarters = normalizedInput.quarter || 0,
        months = normalizedInput.month || 0,
        weeks = normalizedInput.week || normalizedInput.isoWeek || 0,
        days = normalizedInput.day || 0,
        hours = normalizedInput.hour || 0,
        minutes = normalizedInput.minute || 0,
        seconds = normalizedInput.second || 0,
        milliseconds = normalizedInput.millisecond || 0;
      this._isValid = isDurationValid(normalizedInput);

      // representation for dateAddRemove
      this._milliseconds = +milliseconds + seconds * 1e3 +
      // 1000
      minutes * 6e4 +
      // 1000 * 60
      hours * 1000 * 60 * 60; //using 1000 * 60 * 60 instead of 36e5 to avoid floating point rounding errors https://github.com/moment/moment/issues/2978
      // Because of dateAddRemove treats 24 hours as different from a
      // day when working around DST, we need to store them separately
      this._days = +days + weeks * 7;
      // It is impossible to translate months into days without knowing
      // which months you are are talking about, so we have to store
      // it separately.
      this._months = +months + quarters * 3 + years * 12;
      this._data = {};
      this._locale = getLocale();
      this._bubble();
    }
    function isDuration(obj) {
      return obj instanceof Duration;
    }
    function absRound(number) {
      if (number < 0) {
        return Math.round(-1 * number) * -1;
      } else {
        return Math.round(number);
      }
    }

    // compare two arrays, return the number of differences
    function compareArrays(array1, array2, dontConvert) {
      var len = Math.min(array1.length, array2.length),
        lengthDiff = Math.abs(array1.length - array2.length),
        diffs = 0,
        i;
      for (i = 0; i < len; i++) {
        if (dontConvert && array1[i] !== array2[i] || !dontConvert && toInt(array1[i]) !== toInt(array2[i])) {
          diffs++;
        }
      }
      return diffs + lengthDiff;
    }

    // FORMATTING

    function offset(token, separator) {
      addFormatToken(token, 0, 0, function () {
        var offset = this.utcOffset(),
          sign = '+';
        if (offset < 0) {
          offset = -offset;
          sign = '-';
        }
        return sign + zeroFill(~~(offset / 60), 2) + separator + zeroFill(~~offset % 60, 2);
      });
    }
    offset('Z', ':');
    offset('ZZ', '');

    // PARSING

    addRegexToken('Z', matchShortOffset);
    addRegexToken('ZZ', matchShortOffset);
    addParseToken(['Z', 'ZZ'], function (input, array, config) {
      config._useUTC = true;
      config._tzm = offsetFromString(matchShortOffset, input);
    });

    // HELPERS

    // timezone chunker
    // '+10:00' > ['10',  '00']
    // '-1530'  > ['-15', '30']
    var chunkOffset = /([\+\-]|\d\d)/gi;
    function offsetFromString(matcher, string) {
      var matches = (string || '').match(matcher),
        chunk,
        parts,
        minutes;
      if (matches === null) {
        return null;
      }
      chunk = matches[matches.length - 1] || [];
      parts = (chunk + '').match(chunkOffset) || ['-', 0, 0];
      minutes = +(parts[1] * 60) + toInt(parts[2]);
      return minutes === 0 ? 0 : parts[0] === '+' ? minutes : -minutes;
    }

    // Return a moment from input, that is local/utc/zone equivalent to model.
    function cloneWithOffset(input, model) {
      var res, diff;
      if (model._isUTC) {
        res = model.clone();
        diff = (isMoment(input) || isDate(input) ? input.valueOf() : createLocal(input).valueOf()) - res.valueOf();
        // Use low-level api, because this fn is low-level api.
        res._d.setTime(res._d.valueOf() + diff);
        hooks.updateOffset(res, false);
        return res;
      } else {
        return createLocal(input).local();
      }
    }
    function getDateOffset(m) {
      // On Firefox.24 Date#getTimezoneOffset returns a floating point.
      // https://github.com/moment/moment/pull/1871
      return -Math.round(m._d.getTimezoneOffset());
    }

    // HOOKS

    // This function will be called whenever a moment is mutated.
    // It is intended to keep the offset in sync with the timezone.
    hooks.updateOffset = function () {};

    // MOMENTS

    // keepLocalTime = true means only change the timezone, without
    // affecting the local hour. So 5:31:26 +0300 --[utcOffset(2, true)]-->
    // 5:31:26 +0200 It is possible that 5:31:26 doesn't exist with offset
    // +0200, so we adjust the time as needed, to be valid.
    //
    // Keeping the time actually adds/subtracts (one hour)
    // from the actual represented time. That is why we call updateOffset
    // a second time. In case it wants us to change the offset again
    // _changeInProgress == true case, then we have to adjust, because
    // there is no such time in the given timezone.
    function getSetOffset(input, keepLocalTime, keepMinutes) {
      var offset = this._offset || 0,
        localAdjust;
      if (!this.isValid()) {
        return input != null ? this : NaN;
      }
      if (input != null) {
        if (typeof input === 'string') {
          input = offsetFromString(matchShortOffset, input);
          if (input === null) {
            return this;
          }
        } else if (Math.abs(input) < 16 && !keepMinutes) {
          input = input * 60;
        }
        if (!this._isUTC && keepLocalTime) {
          localAdjust = getDateOffset(this);
        }
        this._offset = input;
        this._isUTC = true;
        if (localAdjust != null) {
          this.add(localAdjust, 'm');
        }
        if (offset !== input) {
          if (!keepLocalTime || this._changeInProgress) {
            addSubtract(this, createDuration(input - offset, 'm'), 1, false);
          } else if (!this._changeInProgress) {
            this._changeInProgress = true;
            hooks.updateOffset(this, true);
            this._changeInProgress = null;
          }
        }
        return this;
      } else {
        return this._isUTC ? offset : getDateOffset(this);
      }
    }
    function getSetZone(input, keepLocalTime) {
      if (input != null) {
        if (typeof input !== 'string') {
          input = -input;
        }
        this.utcOffset(input, keepLocalTime);
        return this;
      } else {
        return -this.utcOffset();
      }
    }
    function setOffsetToUTC(keepLocalTime) {
      return this.utcOffset(0, keepLocalTime);
    }
    function setOffsetToLocal(keepLocalTime) {
      if (this._isUTC) {
        this.utcOffset(0, keepLocalTime);
        this._isUTC = false;
        if (keepLocalTime) {
          this.subtract(getDateOffset(this), 'm');
        }
      }
      return this;
    }
    function setOffsetToParsedOffset() {
      if (this._tzm != null) {
        this.utcOffset(this._tzm, false, true);
      } else if (typeof this._i === 'string') {
        var tZone = offsetFromString(matchOffset, this._i);
        if (tZone != null) {
          this.utcOffset(tZone);
        } else {
          this.utcOffset(0, true);
        }
      }
      return this;
    }
    function hasAlignedHourOffset(input) {
      if (!this.isValid()) {
        return false;
      }
      input = input ? createLocal(input).utcOffset() : 0;
      return (this.utcOffset() - input) % 60 === 0;
    }
    function isDaylightSavingTime() {
      return this.utcOffset() > this.clone().month(0).utcOffset() || this.utcOffset() > this.clone().month(5).utcOffset();
    }
    function isDaylightSavingTimeShifted() {
      if (!isUndefined(this._isDSTShifted)) {
        return this._isDSTShifted;
      }
      var c = {},
        other;
      copyConfig(c, this);
      c = prepareConfig(c);
      if (c._a) {
        other = c._isUTC ? createUTC(c._a) : createLocal(c._a);
        this._isDSTShifted = this.isValid() && compareArrays(c._a, other.toArray()) > 0;
      } else {
        this._isDSTShifted = false;
      }
      return this._isDSTShifted;
    }
    function isLocal() {
      return this.isValid() ? !this._isUTC : false;
    }
    function isUtcOffset() {
      return this.isValid() ? this._isUTC : false;
    }
    function isUtc() {
      return this.isValid() ? this._isUTC && this._offset === 0 : false;
    }

    // ASP.NET json date format regex
    var aspNetRegex = /^(-|\+)?(?:(\d*)[. ])?(\d+):(\d+)(?::(\d+)(\.\d*)?)?$/,
      // from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html
      // somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere
      // and further modified to allow for strings containing both week and day
      isoRegex = /^(-|\+)?P(?:([-+]?[0-9,.]*)Y)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)W)?(?:([-+]?[0-9,.]*)D)?(?:T(?:([-+]?[0-9,.]*)H)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)S)?)?$/;
    function createDuration(input, key) {
      var duration = input,
        // matching against regexp is expensive, do it on demand
        match = null,
        sign,
        ret,
        diffRes;
      if (isDuration(input)) {
        duration = {
          ms: input._milliseconds,
          d: input._days,
          M: input._months
        };
      } else if (isNumber(input) || !isNaN(+input)) {
        duration = {};
        if (key) {
          duration[key] = +input;
        } else {
          duration.milliseconds = +input;
        }
      } else if (match = aspNetRegex.exec(input)) {
        sign = match[1] === '-' ? -1 : 1;
        duration = {
          y: 0,
          d: toInt(match[DATE]) * sign,
          h: toInt(match[HOUR]) * sign,
          m: toInt(match[MINUTE]) * sign,
          s: toInt(match[SECOND]) * sign,
          ms: toInt(absRound(match[MILLISECOND] * 1000)) * sign // the millisecond decimal point is included in the match
        };
      } else if (match = isoRegex.exec(input)) {
        sign = match[1] === '-' ? -1 : 1;
        duration = {
          y: parseIso(match[2], sign),
          M: parseIso(match[3], sign),
          w: parseIso(match[4], sign),
          d: parseIso(match[5], sign),
          h: parseIso(match[6], sign),
          m: parseIso(match[7], sign),
          s: parseIso(match[8], sign)
        };
      } else if (duration == null) {
        // checks for null or undefined
        duration = {};
      } else if (typeof duration === 'object' && ('from' in duration || 'to' in duration)) {
        diffRes = momentsDifference(createLocal(duration.from), createLocal(duration.to));
        duration = {};
        duration.ms = diffRes.milliseconds;
        duration.M = diffRes.months;
      }
      ret = new Duration(duration);
      if (isDuration(input) && hasOwnProp(input, '_locale')) {
        ret._locale = input._locale;
      }
      if (isDuration(input) && hasOwnProp(input, '_isValid')) {
        ret._isValid = input._isValid;
      }
      return ret;
    }
    createDuration.fn = Duration.prototype;
    createDuration.invalid = createInvalid$1;
    function parseIso(inp, sign) {
      // We'd normally use ~~inp for this, but unfortunately it also
      // converts floats to ints.
      // inp may be undefined, so careful calling replace on it.
      var res = inp && parseFloat(inp.replace(',', '.'));
      // apply sign while we're at it
      return (isNaN(res) ? 0 : res) * sign;
    }
    function positiveMomentsDifference(base, other) {
      var res = {};
      res.months = other.month() - base.month() + (other.year() - base.year()) * 12;
      if (base.clone().add(res.months, 'M').isAfter(other)) {
        --res.months;
      }
      res.milliseconds = +other - +base.clone().add(res.months, 'M');
      return res;
    }
    function momentsDifference(base, other) {
      var res;
      if (!(base.isValid() && other.isValid())) {
        return {
          milliseconds: 0,
          months: 0
        };
      }
      other = cloneWithOffset(other, base);
      if (base.isBefore(other)) {
        res = positiveMomentsDifference(base, other);
      } else {
        res = positiveMomentsDifference(other, base);
        res.milliseconds = -res.milliseconds;
        res.months = -res.months;
      }
      return res;
    }

    // TODO: remove 'name' arg after deprecation is removed
    function createAdder(direction, name) {
      return function (val, period) {
        var dur, tmp;
        //invert the arguments, but complain about it
        if (period !== null && !isNaN(+period)) {
          deprecateSimple(name, 'moment().' + name + '(period, number) is deprecated. Please use moment().' + name + '(number, period). ' + 'See http://momentjs.com/guides/#/warnings/add-inverted-param/ for more info.');
          tmp = val;
          val = period;
          period = tmp;
        }
        dur = createDuration(val, period);
        addSubtract(this, dur, direction);
        return this;
      };
    }
    function addSubtract(mom, duration, isAdding, updateOffset) {
      var milliseconds = duration._milliseconds,
        days = absRound(duration._days),
        months = absRound(duration._months);
      if (!mom.isValid()) {
        // No op
        return;
      }
      updateOffset = updateOffset == null ? true : updateOffset;
      if (months) {
        setMonth(mom, get(mom, 'Month') + months * isAdding);
      }
      if (days) {
        set$1(mom, 'Date', get(mom, 'Date') + days * isAdding);
      }
      if (milliseconds) {
        mom._d.setTime(mom._d.valueOf() + milliseconds * isAdding);
      }
      if (updateOffset) {
        hooks.updateOffset(mom, days || months);
      }
    }
    var add = createAdder(1, 'add'),
      subtract = createAdder(-1, 'subtract');
    function isString(input) {
      return typeof input === 'string' || input instanceof String;
    }

    // type MomentInput = Moment | Date | string | number | (number | string)[] | MomentInputObject | void; // null | undefined
    function isMomentInput(input) {
      return isMoment(input) || isDate(input) || isString(input) || isNumber(input) || isNumberOrStringArray(input) || isMomentInputObject(input) || input === null || input === undefined;
    }
    function isMomentInputObject(input) {
      var objectTest = isObject(input) && !isObjectEmpty(input),
        propertyTest = false,
        properties = ['years', 'year', 'y', 'months', 'month', 'M', 'days', 'day', 'd', 'dates', 'date', 'D', 'hours', 'hour', 'h', 'minutes', 'minute', 'm', 'seconds', 'second', 's', 'milliseconds', 'millisecond', 'ms'],
        i,
        property;
      for (i = 0; i < properties.length; i += 1) {
        property = properties[i];
        propertyTest = propertyTest || hasOwnProp(input, property);
      }
      return objectTest && propertyTest;
    }
    function isNumberOrStringArray(input) {
      var arrayTest = isArray(input),
        dataTypeTest = false;
      if (arrayTest) {
        dataTypeTest = input.filter(function (item) {
          return !isNumber(item) && isString(input);
        }).length === 0;
      }
      return arrayTest && dataTypeTest;
    }
    function isCalendarSpec(input) {
      var objectTest = isObject(input) && !isObjectEmpty(input),
        propertyTest = false,
        properties = ['sameDay', 'nextDay', 'lastDay', 'nextWeek', 'lastWeek', 'sameElse'],
        i,
        property;
      for (i = 0; i < properties.length; i += 1) {
        property = properties[i];
        propertyTest = propertyTest || hasOwnProp(input, property);
      }
      return objectTest && propertyTest;
    }
    function getCalendarFormat(myMoment, now) {
      var diff = myMoment.diff(now, 'days', true);
      return diff < -6 ? 'sameElse' : diff < -1 ? 'lastWeek' : diff < 0 ? 'lastDay' : diff < 1 ? 'sameDay' : diff < 2 ? 'nextDay' : diff < 7 ? 'nextWeek' : 'sameElse';
    }
    function calendar$1(time, formats) {
      // Support for single parameter, formats only overload to the calendar function
      if (arguments.length === 1) {
        if (!arguments[0]) {
          time = undefined;
          formats = undefined;
        } else if (isMomentInput(arguments[0])) {
          time = arguments[0];
          formats = undefined;
        } else if (isCalendarSpec(arguments[0])) {
          formats = arguments[0];
          time = undefined;
        }
      }
      // We want to compare the start of today, vs this.
      // Getting start-of-today depends on whether we're local/utc/offset or not.
      var now = time || createLocal(),
        sod = cloneWithOffset(now, this).startOf('day'),
        format = hooks.calendarFormat(this, sod) || 'sameElse',
        output = formats && (isFunction(formats[format]) ? formats[format].call(this, now) : formats[format]);
      return this.format(output || this.localeData().calendar(format, this, createLocal(now)));
    }
    function clone() {
      return new Moment(this);
    }
    function isAfter(input, units) {
      var localInput = isMoment(input) ? input : createLocal(input);
      if (!(this.isValid() && localInput.isValid())) {
        return false;
      }
      units = normalizeUnits(units) || 'millisecond';
      if (units === 'millisecond') {
        return this.valueOf() > localInput.valueOf();
      } else {
        return localInput.valueOf() < this.clone().startOf(units).valueOf();
      }
    }
    function isBefore(input, units) {
      var localInput = isMoment(input) ? input : createLocal(input);
      if (!(this.isValid() && localInput.isValid())) {
        return false;
      }
      units = normalizeUnits(units) || 'millisecond';
      if (units === 'millisecond') {
        return this.valueOf() < localInput.valueOf();
      } else {
        return this.clone().endOf(units).valueOf() < localInput.valueOf();
      }
    }
    function isBetween(from, to, units, inclusivity) {
      var localFrom = isMoment(from) ? from : createLocal(from),
        localTo = isMoment(to) ? to : createLocal(to);
      if (!(this.isValid() && localFrom.isValid() && localTo.isValid())) {
        return false;
      }
      inclusivity = inclusivity || '()';
      return (inclusivity[0] === '(' ? this.isAfter(localFrom, units) : !this.isBefore(localFrom, units)) && (inclusivity[1] === ')' ? this.isBefore(localTo, units) : !this.isAfter(localTo, units));
    }
    function isSame(input, units) {
      var localInput = isMoment(input) ? input : createLocal(input),
        inputMs;
      if (!(this.isValid() && localInput.isValid())) {
        return false;
      }
      units = normalizeUnits(units) || 'millisecond';
      if (units === 'millisecond') {
        return this.valueOf() === localInput.valueOf();
      } else {
        inputMs = localInput.valueOf();
        return this.clone().startOf(units).valueOf() <= inputMs && inputMs <= this.clone().endOf(units).valueOf();
      }
    }
    function isSameOrAfter(input, units) {
      return this.isSame(input, units) || this.isAfter(input, units);
    }
    function isSameOrBefore(input, units) {
      return this.isSame(input, units) || this.isBefore(input, units);
    }
    function diff(input, units, asFloat) {
      var that, zoneDelta, output;
      if (!this.isValid()) {
        return NaN;
      }
      that = cloneWithOffset(input, this);
      if (!that.isValid()) {
        return NaN;
      }
      zoneDelta = (that.utcOffset() - this.utcOffset()) * 6e4;
      units = normalizeUnits(units);
      switch (units) {
        case 'year':
          output = monthDiff(this, that) / 12;
          break;
        case 'month':
          output = monthDiff(this, that);
          break;
        case 'quarter':
          output = monthDiff(this, that) / 3;
          break;
        case 'second':
          output = (this - that) / 1e3;
          break;
        // 1000
        case 'minute':
          output = (this - that) / 6e4;
          break;
        // 1000 * 60
        case 'hour':
          output = (this - that) / 36e5;
          break;
        // 1000 * 60 * 60
        case 'day':
          output = (this - that - zoneDelta) / 864e5;
          break;
        // 1000 * 60 * 60 * 24, negate dst
        case 'week':
          output = (this - that - zoneDelta) / 6048e5;
          break;
        // 1000 * 60 * 60 * 24 * 7, negate dst
        default:
          output = this - that;
      }
      return asFloat ? output : absFloor(output);
    }
    function monthDiff(a, b) {
      if (a.date() < b.date()) {
        // end-of-month calculations work correct when the start month has more
        // days than the end month.
        return -monthDiff(b, a);
      }
      // difference in months
      var wholeMonthDiff = (b.year() - a.year()) * 12 + (b.month() - a.month()),
        // b is in (anchor - 1 month, anchor + 1 month)
        anchor = a.clone().add(wholeMonthDiff, 'months'),
        anchor2,
        adjust;
      if (b - anchor < 0) {
        anchor2 = a.clone().add(wholeMonthDiff - 1, 'months');
        // linear across the month
        adjust = (b - anchor) / (anchor - anchor2);
      } else {
        anchor2 = a.clone().add(wholeMonthDiff + 1, 'months');
        // linear across the month
        adjust = (b - anchor) / (anchor2 - anchor);
      }

      //check for negative zero, return zero if negative zero
      return -(wholeMonthDiff + adjust) || 0;
    }
    hooks.defaultFormat = 'YYYY-MM-DDTHH:mm:ssZ';
    hooks.defaultFormatUtc = 'YYYY-MM-DDTHH:mm:ss[Z]';
    function toString() {
      return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');
    }
    function toISOString(keepOffset) {
      if (!this.isValid()) {
        return null;
      }
      var utc = keepOffset !== true,
        m = utc ? this.clone().utc() : this;
      if (m.year() < 0 || m.year() > 9999) {
        return formatMoment(m, utc ? 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYYYY-MM-DD[T]HH:mm:ss.SSSZ');
      }
      if (isFunction(Date.prototype.toISOString)) {
        // native implementation is ~50x faster, use it when we can
        if (utc) {
          return this.toDate().toISOString();
        } else {
          return new Date(this.valueOf() + this.utcOffset() * 60 * 1000).toISOString().replace('Z', formatMoment(m, 'Z'));
        }
      }
      return formatMoment(m, utc ? 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYY-MM-DD[T]HH:mm:ss.SSSZ');
    }

    /**
     * Return a human readable representation of a moment that can
     * also be evaluated to get a new moment which is the same
     *
     * @link https://nodejs.org/dist/latest/docs/api/util.html#util_custom_inspect_function_on_objects
     */
    function inspect() {
      if (!this.isValid()) {
        return 'moment.invalid(/* ' + this._i + ' */)';
      }
      var func = 'moment',
        zone = '',
        prefix,
        year,
        datetime,
        suffix;
      if (!this.isLocal()) {
        func = this.utcOffset() === 0 ? 'moment.utc' : 'moment.parseZone';
        zone = 'Z';
      }
      prefix = '[' + func + '("]';
      year = 0 <= this.year() && this.year() <= 9999 ? 'YYYY' : 'YYYYYY';
      datetime = '-MM-DD[T]HH:mm:ss.SSS';
      suffix = zone + '[")]';
      return this.format(prefix + year + datetime + suffix);
    }
    function format(inputString) {
      if (!inputString) {
        inputString = this.isUtc() ? hooks.defaultFormatUtc : hooks.defaultFormat;
      }
      var output = formatMoment(this, inputString);
      return this.localeData().postformat(output);
    }
    function from(time, withoutSuffix) {
      if (this.isValid() && (isMoment(time) && time.isValid() || createLocal(time).isValid())) {
        return createDuration({
          to: this,
          from: time
        }).locale(this.locale()).humanize(!withoutSuffix);
      } else {
        return this.localeData().invalidDate();
      }
    }
    function fromNow(withoutSuffix) {
      return this.from(createLocal(), withoutSuffix);
    }
    function to(time, withoutSuffix) {
      if (this.isValid() && (isMoment(time) && time.isValid() || createLocal(time).isValid())) {
        return createDuration({
          from: this,
          to: time
        }).locale(this.locale()).humanize(!withoutSuffix);
      } else {
        return this.localeData().invalidDate();
      }
    }
    function toNow(withoutSuffix) {
      return this.to(createLocal(), withoutSuffix);
    }

    // If passed a locale key, it will set the locale for this
    // instance.  Otherwise, it will return the locale configuration
    // variables for this instance.
    function locale(key) {
      var newLocaleData;
      if (key === undefined) {
        return this._locale._abbr;
      } else {
        newLocaleData = getLocale(key);
        if (newLocaleData != null) {
          this._locale = newLocaleData;
        }
        return this;
      }
    }
    var lang = deprecate('moment().lang() is deprecated. Instead, use moment().localeData() to get the language configuration. Use moment().locale() to change languages.', function (key) {
      if (key === undefined) {
        return this.localeData();
      } else {
        return this.locale(key);
      }
    });
    function localeData() {
      return this._locale;
    }
    var MS_PER_SECOND = 1000,
      MS_PER_MINUTE = 60 * MS_PER_SECOND,
      MS_PER_HOUR = 60 * MS_PER_MINUTE,
      MS_PER_400_YEARS = (365 * 400 + 97) * 24 * MS_PER_HOUR;

    // actual modulo - handles negative numbers (for dates before 1970):
    function mod$1(dividend, divisor) {
      return (dividend % divisor + divisor) % divisor;
    }
    function localStartOfDate(y, m, d) {
      // the date constructor remaps years 0-99 to 1900-1999
      if (y < 100 && y >= 0) {
        // preserve leap years using a full 400 year cycle, then reset
        return new Date(y + 400, m, d) - MS_PER_400_YEARS;
      } else {
        return new Date(y, m, d).valueOf();
      }
    }
    function utcStartOfDate(y, m, d) {
      // Date.UTC remaps years 0-99 to 1900-1999
      if (y < 100 && y >= 0) {
        // preserve leap years using a full 400 year cycle, then reset
        return Date.UTC(y + 400, m, d) - MS_PER_400_YEARS;
      } else {
        return Date.UTC(y, m, d);
      }
    }
    function startOf(units) {
      var time, startOfDate;
      units = normalizeUnits(units);
      if (units === undefined || units === 'millisecond' || !this.isValid()) {
        return this;
      }
      startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;
      switch (units) {
        case 'year':
          time = startOfDate(this.year(), 0, 1);
          break;
        case 'quarter':
          time = startOfDate(this.year(), this.month() - this.month() % 3, 1);
          break;
        case 'month':
          time = startOfDate(this.year(), this.month(), 1);
          break;
        case 'week':
          time = startOfDate(this.year(), this.month(), this.date() - this.weekday());
          break;
        case 'isoWeek':
          time = startOfDate(this.year(), this.month(), this.date() - (this.isoWeekday() - 1));
          break;
        case 'day':
        case 'date':
          time = startOfDate(this.year(), this.month(), this.date());
          break;
        case 'hour':
          time = this._d.valueOf();
          time -= mod$1(time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE), MS_PER_HOUR);
          break;
        case 'minute':
          time = this._d.valueOf();
          time -= mod$1(time, MS_PER_MINUTE);
          break;
        case 'second':
          time = this._d.valueOf();
          time -= mod$1(time, MS_PER_SECOND);
          break;
      }
      this._d.setTime(time);
      hooks.updateOffset(this, true);
      return this;
    }
    function endOf(units) {
      var time, startOfDate;
      units = normalizeUnits(units);
      if (units === undefined || units === 'millisecond' || !this.isValid()) {
        return this;
      }
      startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;
      switch (units) {
        case 'year':
          time = startOfDate(this.year() + 1, 0, 1) - 1;
          break;
        case 'quarter':
          time = startOfDate(this.year(), this.month() - this.month() % 3 + 3, 1) - 1;
          break;
        case 'month':
          time = startOfDate(this.year(), this.month() + 1, 1) - 1;
          break;
        case 'week':
          time = startOfDate(this.year(), this.month(), this.date() - this.weekday() + 7) - 1;
          break;
        case 'isoWeek':
          time = startOfDate(this.year(), this.month(), this.date() - (this.isoWeekday() - 1) + 7) - 1;
          break;
        case 'day':
        case 'date':
          time = startOfDate(this.year(), this.month(), this.date() + 1) - 1;
          break;
        case 'hour':
          time = this._d.valueOf();
          time += MS_PER_HOUR - mod$1(time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE), MS_PER_HOUR) - 1;
          break;
        case 'minute':
          time = this._d.valueOf();
          time += MS_PER_MINUTE - mod$1(time, MS_PER_MINUTE) - 1;
          break;
        case 'second':
          time = this._d.valueOf();
          time += MS_PER_SECOND - mod$1(time, MS_PER_SECOND) - 1;
          break;
      }
      this._d.setTime(time);
      hooks.updateOffset(this, true);
      return this;
    }
    function valueOf() {
      return this._d.valueOf() - (this._offset || 0) * 60000;
    }
    function unix() {
      return Math.floor(this.valueOf() / 1000);
    }
    function toDate() {
      return new Date(this.valueOf());
    }
    function toArray() {
      var m = this;
      return [m.year(), m.month(), m.date(), m.hour(), m.minute(), m.second(), m.millisecond()];
    }
    function toObject() {
      var m = this;
      return {
        years: m.year(),
        months: m.month(),
        date: m.date(),
        hours: m.hours(),
        minutes: m.minutes(),
        seconds: m.seconds(),
        milliseconds: m.milliseconds()
      };
    }
    function toJSON() {
      // new Date(NaN).toJSON() === null
      return this.isValid() ? this.toISOString() : null;
    }
    function isValid$2() {
      return isValid(this);
    }
    function parsingFlags() {
      return extend({}, getParsingFlags(this));
    }
    function invalidAt() {
      return getParsingFlags(this).overflow;
    }
    function creationData() {
      return {
        input: this._i,
        format: this._f,
        locale: this._locale,
        isUTC: this._isUTC,
        strict: this._strict
      };
    }
    addFormatToken('N', 0, 0, 'eraAbbr');
    addFormatToken('NN', 0, 0, 'eraAbbr');
    addFormatToken('NNN', 0, 0, 'eraAbbr');
    addFormatToken('NNNN', 0, 0, 'eraName');
    addFormatToken('NNNNN', 0, 0, 'eraNarrow');
    addFormatToken('y', ['y', 1], 'yo', 'eraYear');
    addFormatToken('y', ['yy', 2], 0, 'eraYear');
    addFormatToken('y', ['yyy', 3], 0, 'eraYear');
    addFormatToken('y', ['yyyy', 4], 0, 'eraYear');
    addRegexToken('N', matchEraAbbr);
    addRegexToken('NN', matchEraAbbr);
    addRegexToken('NNN', matchEraAbbr);
    addRegexToken('NNNN', matchEraName);
    addRegexToken('NNNNN', matchEraNarrow);
    addParseToken(['N', 'NN', 'NNN', 'NNNN', 'NNNNN'], function (input, array, config, token) {
      var era = config._locale.erasParse(input, token, config._strict);
      if (era) {
        getParsingFlags(config).era = era;
      } else {
        getParsingFlags(config).invalidEra = input;
      }
    });
    addRegexToken('y', matchUnsigned);
    addRegexToken('yy', matchUnsigned);
    addRegexToken('yyy', matchUnsigned);
    addRegexToken('yyyy', matchUnsigned);
    addRegexToken('yo', matchEraYearOrdinal);
    addParseToken(['y', 'yy', 'yyy', 'yyyy'], YEAR);
    addParseToken(['yo'], function (input, array, config, token) {
      var match;
      if (config._locale._eraYearOrdinalRegex) {
        match = input.match(config._locale._eraYearOrdinalRegex);
      }
      if (config._locale.eraYearOrdinalParse) {
        array[YEAR] = config._locale.eraYearOrdinalParse(input, match);
      } else {
        array[YEAR] = parseInt(input, 10);
      }
    });
    function localeEras(m, format) {
      var i,
        l,
        date,
        eras = this._eras || getLocale('en')._eras;
      for (i = 0, l = eras.length; i < l; ++i) {
        switch (typeof eras[i].since) {
          case 'string':
            // truncate time
            date = hooks(eras[i].since).startOf('day');
            eras[i].since = date.valueOf();
            break;
        }
        switch (typeof eras[i].until) {
          case 'undefined':
            eras[i].until = +Infinity;
            break;
          case 'string':
            // truncate time
            date = hooks(eras[i].until).startOf('day').valueOf();
            eras[i].until = date.valueOf();
            break;
        }
      }
      return eras;
    }
    function localeErasParse(eraName, format, strict) {
      var i,
        l,
        eras = this.eras(),
        name,
        abbr,
        narrow;
      eraName = eraName.toUpperCase();
      for (i = 0, l = eras.length; i < l; ++i) {
        name = eras[i].name.toUpperCase();
        abbr = eras[i].abbr.toUpperCase();
        narrow = eras[i].narrow.toUpperCase();
        if (strict) {
          switch (format) {
            case 'N':
            case 'NN':
            case 'NNN':
              if (abbr === eraName) {
                return eras[i];
              }
              break;
            case 'NNNN':
              if (name === eraName) {
                return eras[i];
              }
              break;
            case 'NNNNN':
              if (narrow === eraName) {
                return eras[i];
              }
              break;
          }
        } else if ([name, abbr, narrow].indexOf(eraName) >= 0) {
          return eras[i];
        }
      }
    }
    function localeErasConvertYear(era, year) {
      var dir = era.since <= era.until ? +1 : -1;
      if (year === undefined) {
        return hooks(era.since).year();
      } else {
        return hooks(era.since).year() + (year - era.offset) * dir;
      }
    }
    function getEraName() {
      var i,
        l,
        val,
        eras = this.localeData().eras();
      for (i = 0, l = eras.length; i < l; ++i) {
        // truncate time
        val = this.clone().startOf('day').valueOf();
        if (eras[i].since <= val && val <= eras[i].until) {
          return eras[i].name;
        }
        if (eras[i].until <= val && val <= eras[i].since) {
          return eras[i].name;
        }
      }
      return '';
    }
    function getEraNarrow() {
      var i,
        l,
        val,
        eras = this.localeData().eras();
      for (i = 0, l = eras.length; i < l; ++i) {
        // truncate time
        val = this.clone().startOf('day').valueOf();
        if (eras[i].since <= val && val <= eras[i].until) {
          return eras[i].narrow;
        }
        if (eras[i].until <= val && val <= eras[i].since) {
          return eras[i].narrow;
        }
      }
      return '';
    }
    function getEraAbbr() {
      var i,
        l,
        val,
        eras = this.localeData().eras();
      for (i = 0, l = eras.length; i < l; ++i) {
        // truncate time
        val = this.clone().startOf('day').valueOf();
        if (eras[i].since <= val && val <= eras[i].until) {
          return eras[i].abbr;
        }
        if (eras[i].until <= val && val <= eras[i].since) {
          return eras[i].abbr;
        }
      }
      return '';
    }
    function getEraYear() {
      var i,
        l,
        dir,
        val,
        eras = this.localeData().eras();
      for (i = 0, l = eras.length; i < l; ++i) {
        dir = eras[i].since <= eras[i].until ? +1 : -1;

        // truncate time
        val = this.clone().startOf('day').valueOf();
        if (eras[i].since <= val && val <= eras[i].until || eras[i].until <= val && val <= eras[i].since) {
          return (this.year() - hooks(eras[i].since).year()) * dir + eras[i].offset;
        }
      }
      return this.year();
    }
    function erasNameRegex(isStrict) {
      if (!hasOwnProp(this, '_erasNameRegex')) {
        computeErasParse.call(this);
      }
      return isStrict ? this._erasNameRegex : this._erasRegex;
    }
    function erasAbbrRegex(isStrict) {
      if (!hasOwnProp(this, '_erasAbbrRegex')) {
        computeErasParse.call(this);
      }
      return isStrict ? this._erasAbbrRegex : this._erasRegex;
    }
    function erasNarrowRegex(isStrict) {
      if (!hasOwnProp(this, '_erasNarrowRegex')) {
        computeErasParse.call(this);
      }
      return isStrict ? this._erasNarrowRegex : this._erasRegex;
    }
    function matchEraAbbr(isStrict, locale) {
      return locale.erasAbbrRegex(isStrict);
    }
    function matchEraName(isStrict, locale) {
      return locale.erasNameRegex(isStrict);
    }
    function matchEraNarrow(isStrict, locale) {
      return locale.erasNarrowRegex(isStrict);
    }
    function matchEraYearOrdinal(isStrict, locale) {
      return locale._eraYearOrdinalRegex || matchUnsigned;
    }
    function computeErasParse() {
      var abbrPieces = [],
        namePieces = [],
        narrowPieces = [],
        mixedPieces = [],
        i,
        l,
        eras = this.eras();
      for (i = 0, l = eras.length; i < l; ++i) {
        namePieces.push(regexEscape(eras[i].name));
        abbrPieces.push(regexEscape(eras[i].abbr));
        narrowPieces.push(regexEscape(eras[i].narrow));
        mixedPieces.push(regexEscape(eras[i].name));
        mixedPieces.push(regexEscape(eras[i].abbr));
        mixedPieces.push(regexEscape(eras[i].narrow));
      }
      this._erasRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
      this._erasNameRegex = new RegExp('^(' + namePieces.join('|') + ')', 'i');
      this._erasAbbrRegex = new RegExp('^(' + abbrPieces.join('|') + ')', 'i');
      this._erasNarrowRegex = new RegExp('^(' + narrowPieces.join('|') + ')', 'i');
    }

    // FORMATTING

    addFormatToken(0, ['gg', 2], 0, function () {
      return this.weekYear() % 100;
    });
    addFormatToken(0, ['GG', 2], 0, function () {
      return this.isoWeekYear() % 100;
    });
    function addWeekYearFormatToken(token, getter) {
      addFormatToken(0, [token, token.length], 0, getter);
    }
    addWeekYearFormatToken('gggg', 'weekYear');
    addWeekYearFormatToken('ggggg', 'weekYear');
    addWeekYearFormatToken('GGGG', 'isoWeekYear');
    addWeekYearFormatToken('GGGGG', 'isoWeekYear');

    // ALIASES

    addUnitAlias('weekYear', 'gg');
    addUnitAlias('isoWeekYear', 'GG');

    // PRIORITY

    addUnitPriority('weekYear', 1);
    addUnitPriority('isoWeekYear', 1);

    // PARSING

    addRegexToken('G', matchSigned);
    addRegexToken('g', matchSigned);
    addRegexToken('GG', match1to2, match2);
    addRegexToken('gg', match1to2, match2);
    addRegexToken('GGGG', match1to4, match4);
    addRegexToken('gggg', match1to4, match4);
    addRegexToken('GGGGG', match1to6, match6);
    addRegexToken('ggggg', match1to6, match6);
    addWeekParseToken(['gggg', 'ggggg', 'GGGG', 'GGGGG'], function (input, week, config, token) {
      week[token.substr(0, 2)] = toInt(input);
    });
    addWeekParseToken(['gg', 'GG'], function (input, week, config, token) {
      week[token] = hooks.parseTwoDigitYear(input);
    });

    // MOMENTS

    function getSetWeekYear(input) {
      return getSetWeekYearHelper.call(this, input, this.week(), this.weekday(), this.localeData()._week.dow, this.localeData()._week.doy);
    }
    function getSetISOWeekYear(input) {
      return getSetWeekYearHelper.call(this, input, this.isoWeek(), this.isoWeekday(), 1, 4);
    }
    function getISOWeeksInYear() {
      return weeksInYear(this.year(), 1, 4);
    }
    function getISOWeeksInISOWeekYear() {
      return weeksInYear(this.isoWeekYear(), 1, 4);
    }
    function getWeeksInYear() {
      var weekInfo = this.localeData()._week;
      return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);
    }
    function getWeeksInWeekYear() {
      var weekInfo = this.localeData()._week;
      return weeksInYear(this.weekYear(), weekInfo.dow, weekInfo.doy);
    }
    function getSetWeekYearHelper(input, week, weekday, dow, doy) {
      var weeksTarget;
      if (input == null) {
        return weekOfYear(this, dow, doy).year;
      } else {
        weeksTarget = weeksInYear(input, dow, doy);
        if (week > weeksTarget) {
          week = weeksTarget;
        }
        return setWeekAll.call(this, input, week, weekday, dow, doy);
      }
    }
    function setWeekAll(weekYear, week, weekday, dow, doy) {
      var dayOfYearData = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy),
        date = createUTCDate(dayOfYearData.year, 0, dayOfYearData.dayOfYear);
      this.year(date.getUTCFullYear());
      this.month(date.getUTCMonth());
      this.date(date.getUTCDate());
      return this;
    }

    // FORMATTING

    addFormatToken('Q', 0, 'Qo', 'quarter');

    // ALIASES

    addUnitAlias('quarter', 'Q');

    // PRIORITY

    addUnitPriority('quarter', 7);

    // PARSING

    addRegexToken('Q', match1);
    addParseToken('Q', function (input, array) {
      array[MONTH] = (toInt(input) - 1) * 3;
    });

    // MOMENTS

    function getSetQuarter(input) {
      return input == null ? Math.ceil((this.month() + 1) / 3) : this.month((input - 1) * 3 + this.month() % 3);
    }

    // FORMATTING

    addFormatToken('D', ['DD', 2], 'Do', 'date');

    // ALIASES

    addUnitAlias('date', 'D');

    // PRIORITY
    addUnitPriority('date', 9);

    // PARSING

    addRegexToken('D', match1to2);
    addRegexToken('DD', match1to2, match2);
    addRegexToken('Do', function (isStrict, locale) {
      // TODO: Remove "ordinalParse" fallback in next major release.
      return isStrict ? locale._dayOfMonthOrdinalParse || locale._ordinalParse : locale._dayOfMonthOrdinalParseLenient;
    });
    addParseToken(['D', 'DD'], DATE);
    addParseToken('Do', function (input, array) {
      array[DATE] = toInt(input.match(match1to2)[0]);
    });

    // MOMENTS

    var getSetDayOfMonth = makeGetSet('Date', true);

    // FORMATTING

    addFormatToken('DDD', ['DDDD', 3], 'DDDo', 'dayOfYear');

    // ALIASES

    addUnitAlias('dayOfYear', 'DDD');

    // PRIORITY
    addUnitPriority('dayOfYear', 4);

    // PARSING

    addRegexToken('DDD', match1to3);
    addRegexToken('DDDD', match3);
    addParseToken(['DDD', 'DDDD'], function (input, array, config) {
      config._dayOfYear = toInt(input);
    });

    // HELPERS

    // MOMENTS

    function getSetDayOfYear(input) {
      var dayOfYear = Math.round((this.clone().startOf('day') - this.clone().startOf('year')) / 864e5) + 1;
      return input == null ? dayOfYear : this.add(input - dayOfYear, 'd');
    }

    // FORMATTING

    addFormatToken('m', ['mm', 2], 0, 'minute');

    // ALIASES

    addUnitAlias('minute', 'm');

    // PRIORITY

    addUnitPriority('minute', 14);

    // PARSING

    addRegexToken('m', match1to2);
    addRegexToken('mm', match1to2, match2);
    addParseToken(['m', 'mm'], MINUTE);

    // MOMENTS

    var getSetMinute = makeGetSet('Minutes', false);

    // FORMATTING

    addFormatToken('s', ['ss', 2], 0, 'second');

    // ALIASES

    addUnitAlias('second', 's');

    // PRIORITY

    addUnitPriority('second', 15);

    // PARSING

    addRegexToken('s', match1to2);
    addRegexToken('ss', match1to2, match2);
    addParseToken(['s', 'ss'], SECOND);

    // MOMENTS

    var getSetSecond = makeGetSet('Seconds', false);

    // FORMATTING

    addFormatToken('S', 0, 0, function () {
      return ~~(this.millisecond() / 100);
    });
    addFormatToken(0, ['SS', 2], 0, function () {
      return ~~(this.millisecond() / 10);
    });
    addFormatToken(0, ['SSS', 3], 0, 'millisecond');
    addFormatToken(0, ['SSSS', 4], 0, function () {
      return this.millisecond() * 10;
    });
    addFormatToken(0, ['SSSSS', 5], 0, function () {
      return this.millisecond() * 100;
    });
    addFormatToken(0, ['SSSSSS', 6], 0, function () {
      return this.millisecond() * 1000;
    });
    addFormatToken(0, ['SSSSSSS', 7], 0, function () {
      return this.millisecond() * 10000;
    });
    addFormatToken(0, ['SSSSSSSS', 8], 0, function () {
      return this.millisecond() * 100000;
    });
    addFormatToken(0, ['SSSSSSSSS', 9], 0, function () {
      return this.millisecond() * 1000000;
    });

    // ALIASES

    addUnitAlias('millisecond', 'ms');

    // PRIORITY

    addUnitPriority('millisecond', 16);

    // PARSING

    addRegexToken('S', match1to3, match1);
    addRegexToken('SS', match1to3, match2);
    addRegexToken('SSS', match1to3, match3);
    var token, getSetMillisecond;
    for (token = 'SSSS'; token.length <= 9; token += 'S') {
      addRegexToken(token, matchUnsigned);
    }
    function parseMs(input, array) {
      array[MILLISECOND] = toInt(('0.' + input) * 1000);
    }
    for (token = 'S'; token.length <= 9; token += 'S') {
      addParseToken(token, parseMs);
    }
    getSetMillisecond = makeGetSet('Milliseconds', false);

    // FORMATTING

    addFormatToken('z', 0, 0, 'zoneAbbr');
    addFormatToken('zz', 0, 0, 'zoneName');

    // MOMENTS

    function getZoneAbbr() {
      return this._isUTC ? 'UTC' : '';
    }
    function getZoneName() {
      return this._isUTC ? 'Coordinated Universal Time' : '';
    }
    var proto = Moment.prototype;
    proto.add = add;
    proto.calendar = calendar$1;
    proto.clone = clone;
    proto.diff = diff;
    proto.endOf = endOf;
    proto.format = format;
    proto.from = from;
    proto.fromNow = fromNow;
    proto.to = to;
    proto.toNow = toNow;
    proto.get = stringGet;
    proto.invalidAt = invalidAt;
    proto.isAfter = isAfter;
    proto.isBefore = isBefore;
    proto.isBetween = isBetween;
    proto.isSame = isSame;
    proto.isSameOrAfter = isSameOrAfter;
    proto.isSameOrBefore = isSameOrBefore;
    proto.isValid = isValid$2;
    proto.lang = lang;
    proto.locale = locale;
    proto.localeData = localeData;
    proto.max = prototypeMax;
    proto.min = prototypeMin;
    proto.parsingFlags = parsingFlags;
    proto.set = stringSet;
    proto.startOf = startOf;
    proto.subtract = subtract;
    proto.toArray = toArray;
    proto.toObject = toObject;
    proto.toDate = toDate;
    proto.toISOString = toISOString;
    proto.inspect = inspect;
    if (typeof Symbol !== 'undefined' && Symbol.for != null) {
      proto[Symbol.for('nodejs.util.inspect.custom')] = function () {
        return 'Moment<' + this.format() + '>';
      };
    }
    proto.toJSON = toJSON;
    proto.toString = toString;
    proto.unix = unix;
    proto.valueOf = valueOf;
    proto.creationData = creationData;
    proto.eraName = getEraName;
    proto.eraNarrow = getEraNarrow;
    proto.eraAbbr = getEraAbbr;
    proto.eraYear = getEraYear;
    proto.year = getSetYear;
    proto.isLeapYear = getIsLeapYear;
    proto.weekYear = getSetWeekYear;
    proto.isoWeekYear = getSetISOWeekYear;
    proto.quarter = proto.quarters = getSetQuarter;
    proto.month = getSetMonth;
    proto.daysInMonth = getDaysInMonth;
    proto.week = proto.weeks = getSetWeek;
    proto.isoWeek = proto.isoWeeks = getSetISOWeek;
    proto.weeksInYear = getWeeksInYear;
    proto.weeksInWeekYear = getWeeksInWeekYear;
    proto.isoWeeksInYear = getISOWeeksInYear;
    proto.isoWeeksInISOWeekYear = getISOWeeksInISOWeekYear;
    proto.date = getSetDayOfMonth;
    proto.day = proto.days = getSetDayOfWeek;
    proto.weekday = getSetLocaleDayOfWeek;
    proto.isoWeekday = getSetISODayOfWeek;
    proto.dayOfYear = getSetDayOfYear;
    proto.hour = proto.hours = getSetHour;
    proto.minute = proto.minutes = getSetMinute;
    proto.second = proto.seconds = getSetSecond;
    proto.millisecond = proto.milliseconds = getSetMillisecond;
    proto.utcOffset = getSetOffset;
    proto.utc = setOffsetToUTC;
    proto.local = setOffsetToLocal;
    proto.parseZone = setOffsetToParsedOffset;
    proto.hasAlignedHourOffset = hasAlignedHourOffset;
    proto.isDST = isDaylightSavingTime;
    proto.isLocal = isLocal;
    proto.isUtcOffset = isUtcOffset;
    proto.isUtc = isUtc;
    proto.isUTC = isUtc;
    proto.zoneAbbr = getZoneAbbr;
    proto.zoneName = getZoneName;
    proto.dates = deprecate('dates accessor is deprecated. Use date instead.', getSetDayOfMonth);
    proto.months = deprecate('months accessor is deprecated. Use month instead', getSetMonth);
    proto.years = deprecate('years accessor is deprecated. Use year instead', getSetYear);
    proto.zone = deprecate('moment().zone is deprecated, use moment().utcOffset instead. http://momentjs.com/guides/#/warnings/zone/', getSetZone);
    proto.isDSTShifted = deprecate('isDSTShifted is deprecated. See http://momentjs.com/guides/#/warnings/dst-shifted/ for more information', isDaylightSavingTimeShifted);
    function createUnix(input) {
      return createLocal(input * 1000);
    }
    function createInZone() {
      return createLocal.apply(null, arguments).parseZone();
    }
    function preParsePostFormat(string) {
      return string;
    }
    var proto$1 = Locale.prototype;
    proto$1.calendar = calendar;
    proto$1.longDateFormat = longDateFormat;
    proto$1.invalidDate = invalidDate;
    proto$1.ordinal = ordinal;
    proto$1.preparse = preParsePostFormat;
    proto$1.postformat = preParsePostFormat;
    proto$1.relativeTime = relativeTime;
    proto$1.pastFuture = pastFuture;
    proto$1.set = set;
    proto$1.eras = localeEras;
    proto$1.erasParse = localeErasParse;
    proto$1.erasConvertYear = localeErasConvertYear;
    proto$1.erasAbbrRegex = erasAbbrRegex;
    proto$1.erasNameRegex = erasNameRegex;
    proto$1.erasNarrowRegex = erasNarrowRegex;
    proto$1.months = localeMonths;
    proto$1.monthsShort = localeMonthsShort;
    proto$1.monthsParse = localeMonthsParse;
    proto$1.monthsRegex = monthsRegex;
    proto$1.monthsShortRegex = monthsShortRegex;
    proto$1.week = localeWeek;
    proto$1.firstDayOfYear = localeFirstDayOfYear;
    proto$1.firstDayOfWeek = localeFirstDayOfWeek;
    proto$1.weekdays = localeWeekdays;
    proto$1.weekdaysMin = localeWeekdaysMin;
    proto$1.weekdaysShort = localeWeekdaysShort;
    proto$1.weekdaysParse = localeWeekdaysParse;
    proto$1.weekdaysRegex = weekdaysRegex;
    proto$1.weekdaysShortRegex = weekdaysShortRegex;
    proto$1.weekdaysMinRegex = weekdaysMinRegex;
    proto$1.isPM = localeIsPM;
    proto$1.meridiem = localeMeridiem;
    function get$1(format, index, field, setter) {
      var locale = getLocale(),
        utc = createUTC().set(setter, index);
      return locale[field](utc, format);
    }
    function listMonthsImpl(format, index, field) {
      if (isNumber(format)) {
        index = format;
        format = undefined;
      }
      format = format || '';
      if (index != null) {
        return get$1(format, index, field, 'month');
      }
      var i,
        out = [];
      for (i = 0; i < 12; i++) {
        out[i] = get$1(format, i, field, 'month');
      }
      return out;
    }

    // ()
    // (5)
    // (fmt, 5)
    // (fmt)
    // (true)
    // (true, 5)
    // (true, fmt, 5)
    // (true, fmt)
    function listWeekdaysImpl(localeSorted, format, index, field) {
      if (typeof localeSorted === 'boolean') {
        if (isNumber(format)) {
          index = format;
          format = undefined;
        }
        format = format || '';
      } else {
        format = localeSorted;
        index = format;
        localeSorted = false;
        if (isNumber(format)) {
          index = format;
          format = undefined;
        }
        format = format || '';
      }
      var locale = getLocale(),
        shift = localeSorted ? locale._week.dow : 0,
        i,
        out = [];
      if (index != null) {
        return get$1(format, (index + shift) % 7, field, 'day');
      }
      for (i = 0; i < 7; i++) {
        out[i] = get$1(format, (i + shift) % 7, field, 'day');
      }
      return out;
    }
    function listMonths(format, index) {
      return listMonthsImpl(format, index, 'months');
    }
    function listMonthsShort(format, index) {
      return listMonthsImpl(format, index, 'monthsShort');
    }
    function listWeekdays(localeSorted, format, index) {
      return listWeekdaysImpl(localeSorted, format, index, 'weekdays');
    }
    function listWeekdaysShort(localeSorted, format, index) {
      return listWeekdaysImpl(localeSorted, format, index, 'weekdaysShort');
    }
    function listWeekdaysMin(localeSorted, format, index) {
      return listWeekdaysImpl(localeSorted, format, index, 'weekdaysMin');
    }
    getSetGlobalLocale('en', {
      eras: [{
        since: '0001-01-01',
        until: +Infinity,
        offset: 1,
        name: 'Anno Domini',
        narrow: 'AD',
        abbr: 'AD'
      }, {
        since: '0000-12-31',
        until: -Infinity,
        offset: 1,
        name: 'Before Christ',
        narrow: 'BC',
        abbr: 'BC'
      }],
      dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
      ordinal: function (number) {
        var b = number % 10,
          output = toInt(number % 100 / 10) === 1 ? 'th' : b === 1 ? 'st' : b === 2 ? 'nd' : b === 3 ? 'rd' : 'th';
        return number + output;
      }
    });

    // Side effect imports

    hooks.lang = deprecate('moment.lang is deprecated. Use moment.locale instead.', getSetGlobalLocale);
    hooks.langData = deprecate('moment.langData is deprecated. Use moment.localeData instead.', getLocale);
    var mathAbs = Math.abs;
    function abs() {
      var data = this._data;
      this._milliseconds = mathAbs(this._milliseconds);
      this._days = mathAbs(this._days);
      this._months = mathAbs(this._months);
      data.milliseconds = mathAbs(data.milliseconds);
      data.seconds = mathAbs(data.seconds);
      data.minutes = mathAbs(data.minutes);
      data.hours = mathAbs(data.hours);
      data.months = mathAbs(data.months);
      data.years = mathAbs(data.years);
      return this;
    }
    function addSubtract$1(duration, input, value, direction) {
      var other = createDuration(input, value);
      duration._milliseconds += direction * other._milliseconds;
      duration._days += direction * other._days;
      duration._months += direction * other._months;
      return duration._bubble();
    }

    // supports only 2.0-style add(1, 's') or add(duration)
    function add$1(input, value) {
      return addSubtract$1(this, input, value, 1);
    }

    // supports only 2.0-style subtract(1, 's') or subtract(duration)
    function subtract$1(input, value) {
      return addSubtract$1(this, input, value, -1);
    }
    function absCeil(number) {
      if (number < 0) {
        return Math.floor(number);
      } else {
        return Math.ceil(number);
      }
    }
    function bubble() {
      var milliseconds = this._milliseconds,
        days = this._days,
        months = this._months,
        data = this._data,
        seconds,
        minutes,
        hours,
        years,
        monthsFromDays;

      // if we have a mix of positive and negative values, bubble down first
      // check: https://github.com/moment/moment/issues/2166
      if (!(milliseconds >= 0 && days >= 0 && months >= 0 || milliseconds <= 0 && days <= 0 && months <= 0)) {
        milliseconds += absCeil(monthsToDays(months) + days) * 864e5;
        days = 0;
        months = 0;
      }

      // The following code bubbles up values, see the tests for
      // examples of what that means.
      data.milliseconds = milliseconds % 1000;
      seconds = absFloor(milliseconds / 1000);
      data.seconds = seconds % 60;
      minutes = absFloor(seconds / 60);
      data.minutes = minutes % 60;
      hours = absFloor(minutes / 60);
      data.hours = hours % 24;
      days += absFloor(hours / 24);

      // convert days to months
      monthsFromDays = absFloor(daysToMonths(days));
      months += monthsFromDays;
      days -= absCeil(monthsToDays(monthsFromDays));

      // 12 months -> 1 year
      years = absFloor(months / 12);
      months %= 12;
      data.days = days;
      data.months = months;
      data.years = years;
      return this;
    }
    function daysToMonths(days) {
      // 400 years have 146097 days (taking into account leap year rules)
      // 400 years have 12 months === 4800
      return days * 4800 / 146097;
    }
    function monthsToDays(months) {
      // the reverse of daysToMonths
      return months * 146097 / 4800;
    }
    function as(units) {
      if (!this.isValid()) {
        return NaN;
      }
      var days,
        months,
        milliseconds = this._milliseconds;
      units = normalizeUnits(units);
      if (units === 'month' || units === 'quarter' || units === 'year') {
        days = this._days + milliseconds / 864e5;
        months = this._months + daysToMonths(days);
        switch (units) {
          case 'month':
            return months;
          case 'quarter':
            return months / 3;
          case 'year':
            return months / 12;
        }
      } else {
        // handle milliseconds separately because of floating point math errors (issue #1867)
        days = this._days + Math.round(monthsToDays(this._months));
        switch (units) {
          case 'week':
            return days / 7 + milliseconds / 6048e5;
          case 'day':
            return days + milliseconds / 864e5;
          case 'hour':
            return days * 24 + milliseconds / 36e5;
          case 'minute':
            return days * 1440 + milliseconds / 6e4;
          case 'second':
            return days * 86400 + milliseconds / 1000;
          // Math.floor prevents floating point math errors here
          case 'millisecond':
            return Math.floor(days * 864e5) + milliseconds;
          default:
            throw new Error('Unknown unit ' + units);
        }
      }
    }

    // TODO: Use this.as('ms')?
    function valueOf$1() {
      if (!this.isValid()) {
        return NaN;
      }
      return this._milliseconds + this._days * 864e5 + this._months % 12 * 2592e6 + toInt(this._months / 12) * 31536e6;
    }
    function makeAs(alias) {
      return function () {
        return this.as(alias);
      };
    }
    var asMilliseconds = makeAs('ms'),
      asSeconds = makeAs('s'),
      asMinutes = makeAs('m'),
      asHours = makeAs('h'),
      asDays = makeAs('d'),
      asWeeks = makeAs('w'),
      asMonths = makeAs('M'),
      asQuarters = makeAs('Q'),
      asYears = makeAs('y');
    function clone$1() {
      return createDuration(this);
    }
    function get$2(units) {
      units = normalizeUnits(units);
      return this.isValid() ? this[units + 's']() : NaN;
    }
    function makeGetter(name) {
      return function () {
        return this.isValid() ? this._data[name] : NaN;
      };
    }
    var milliseconds = makeGetter('milliseconds'),
      seconds = makeGetter('seconds'),
      minutes = makeGetter('minutes'),
      hours = makeGetter('hours'),
      days = makeGetter('days'),
      months = makeGetter('months'),
      years = makeGetter('years');
    function weeks() {
      return absFloor(this.days() / 7);
    }
    var round = Math.round,
      thresholds = {
        ss: 44,
        // a few seconds to seconds
        s: 45,
        // seconds to minute
        m: 45,
        // minutes to hour
        h: 22,
        // hours to day
        d: 26,
        // days to month/week
        w: null,
        // weeks to month
        M: 11 // months to year
      };

    // helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
    function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {
      return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
    }
    function relativeTime$1(posNegDuration, withoutSuffix, thresholds, locale) {
      var duration = createDuration(posNegDuration).abs(),
        seconds = round(duration.as('s')),
        minutes = round(duration.as('m')),
        hours = round(duration.as('h')),
        days = round(duration.as('d')),
        months = round(duration.as('M')),
        weeks = round(duration.as('w')),
        years = round(duration.as('y')),
        a = seconds <= thresholds.ss && ['s', seconds] || seconds < thresholds.s && ['ss', seconds] || minutes <= 1 && ['m'] || minutes < thresholds.m && ['mm', minutes] || hours <= 1 && ['h'] || hours < thresholds.h && ['hh', hours] || days <= 1 && ['d'] || days < thresholds.d && ['dd', days];
      if (thresholds.w != null) {
        a = a || weeks <= 1 && ['w'] || weeks < thresholds.w && ['ww', weeks];
      }
      a = a || months <= 1 && ['M'] || months < thresholds.M && ['MM', months] || years <= 1 && ['y'] || ['yy', years];
      a[2] = withoutSuffix;
      a[3] = +posNegDuration > 0;
      a[4] = locale;
      return substituteTimeAgo.apply(null, a);
    }

    // This function allows you to set the rounding function for relative time strings
    function getSetRelativeTimeRounding(roundingFunction) {
      if (roundingFunction === undefined) {
        return round;
      }
      if (typeof roundingFunction === 'function') {
        round = roundingFunction;
        return true;
      }
      return false;
    }

    // This function allows you to set a threshold for relative time strings
    function getSetRelativeTimeThreshold(threshold, limit) {
      if (thresholds[threshold] === undefined) {
        return false;
      }
      if (limit === undefined) {
        return thresholds[threshold];
      }
      thresholds[threshold] = limit;
      if (threshold === 's') {
        thresholds.ss = limit - 1;
      }
      return true;
    }
    function humanize(argWithSuffix, argThresholds) {
      if (!this.isValid()) {
        return this.localeData().invalidDate();
      }
      var withSuffix = false,
        th = thresholds,
        locale,
        output;
      if (typeof argWithSuffix === 'object') {
        argThresholds = argWithSuffix;
        argWithSuffix = false;
      }
      if (typeof argWithSuffix === 'boolean') {
        withSuffix = argWithSuffix;
      }
      if (typeof argThresholds === 'object') {
        th = Object.assign({}, thresholds, argThresholds);
        if (argThresholds.s != null && argThresholds.ss == null) {
          th.ss = argThresholds.s - 1;
        }
      }
      locale = this.localeData();
      output = relativeTime$1(this, !withSuffix, th, locale);
      if (withSuffix) {
        output = locale.pastFuture(+this, output);
      }
      return locale.postformat(output);
    }
    var abs$1 = Math.abs;
    function sign(x) {
      return (x > 0) - (x < 0) || +x;
    }
    function toISOString$1() {
      // for ISO strings we do not use the normal bubbling rules:
      //  * milliseconds bubble up until they become hours
      //  * days do not bubble at all
      //  * months bubble up until they become years
      // This is because there is no context-free conversion between hours and days
      // (think of clock changes)
      // and also not between days and months (28-31 days per month)
      if (!this.isValid()) {
        return this.localeData().invalidDate();
      }
      var seconds = abs$1(this._milliseconds) / 1000,
        days = abs$1(this._days),
        months = abs$1(this._months),
        minutes,
        hours,
        years,
        s,
        total = this.asSeconds(),
        totalSign,
        ymSign,
        daysSign,
        hmsSign;
      if (!total) {
        // this is the same as C#'s (Noda) and python (isodate)...
        // but not other JS (goog.date)
        return 'P0D';
      }

      // 3600 seconds -> 60 minutes -> 1 hour
      minutes = absFloor(seconds / 60);
      hours = absFloor(minutes / 60);
      seconds %= 60;
      minutes %= 60;

      // 12 months -> 1 year
      years = absFloor(months / 12);
      months %= 12;

      // inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
      s = seconds ? seconds.toFixed(3).replace(/\.?0+$/, '') : '';
      totalSign = total < 0 ? '-' : '';
      ymSign = sign(this._months) !== sign(total) ? '-' : '';
      daysSign = sign(this._days) !== sign(total) ? '-' : '';
      hmsSign = sign(this._milliseconds) !== sign(total) ? '-' : '';
      return totalSign + 'P' + (years ? ymSign + years + 'Y' : '') + (months ? ymSign + months + 'M' : '') + (days ? daysSign + days + 'D' : '') + (hours || minutes || seconds ? 'T' : '') + (hours ? hmsSign + hours + 'H' : '') + (minutes ? hmsSign + minutes + 'M' : '') + (seconds ? hmsSign + s + 'S' : '');
    }
    var proto$2 = Duration.prototype;
    proto$2.isValid = isValid$1;
    proto$2.abs = abs;
    proto$2.add = add$1;
    proto$2.subtract = subtract$1;
    proto$2.as = as;
    proto$2.asMilliseconds = asMilliseconds;
    proto$2.asSeconds = asSeconds;
    proto$2.asMinutes = asMinutes;
    proto$2.asHours = asHours;
    proto$2.asDays = asDays;
    proto$2.asWeeks = asWeeks;
    proto$2.asMonths = asMonths;
    proto$2.asQuarters = asQuarters;
    proto$2.asYears = asYears;
    proto$2.valueOf = valueOf$1;
    proto$2._bubble = bubble;
    proto$2.clone = clone$1;
    proto$2.get = get$2;
    proto$2.milliseconds = milliseconds;
    proto$2.seconds = seconds;
    proto$2.minutes = minutes;
    proto$2.hours = hours;
    proto$2.days = days;
    proto$2.weeks = weeks;
    proto$2.months = months;
    proto$2.years = years;
    proto$2.humanize = humanize;
    proto$2.toISOString = toISOString$1;
    proto$2.toString = toISOString$1;
    proto$2.toJSON = toISOString$1;
    proto$2.locale = locale;
    proto$2.localeData = localeData;
    proto$2.toIsoString = deprecate('toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)', toISOString$1);
    proto$2.lang = lang;

    // FORMATTING

    addFormatToken('X', 0, 0, 'unix');
    addFormatToken('x', 0, 0, 'valueOf');

    // PARSING

    addRegexToken('x', matchSigned);
    addRegexToken('X', matchTimestamp);
    addParseToken('X', function (input, array, config) {
      config._d = new Date(parseFloat(input) * 1000);
    });
    addParseToken('x', function (input, array, config) {
      config._d = new Date(toInt(input));
    });

    //! moment.js

    hooks.version = '2.29.1';
    setHookCallback(createLocal);
    hooks.fn = proto;
    hooks.min = min;
    hooks.max = max;
    hooks.now = now;
    hooks.utc = createUTC;
    hooks.unix = createUnix;
    hooks.months = listMonths;
    hooks.isDate = isDate;
    hooks.locale = getSetGlobalLocale;
    hooks.invalid = createInvalid;
    hooks.duration = createDuration;
    hooks.isMoment = isMoment;
    hooks.weekdays = listWeekdays;
    hooks.parseZone = createInZone;
    hooks.localeData = getLocale;
    hooks.isDuration = isDuration;
    hooks.monthsShort = listMonthsShort;
    hooks.weekdaysMin = listWeekdaysMin;
    hooks.defineLocale = defineLocale;
    hooks.updateLocale = updateLocale;
    hooks.locales = listLocales;
    hooks.weekdaysShort = listWeekdaysShort;
    hooks.normalizeUnits = normalizeUnits;
    hooks.relativeTimeRounding = getSetRelativeTimeRounding;
    hooks.relativeTimeThreshold = getSetRelativeTimeThreshold;
    hooks.calendarFormat = getCalendarFormat;
    hooks.prototype = proto;

    // currently HTML5 input type only supports 24-hour formats
    hooks.HTML5_FMT = {
      DATETIME_LOCAL: 'YYYY-MM-DDTHH:mm',
      // <input type="datetime-local" />
      DATETIME_LOCAL_SECONDS: 'YYYY-MM-DDTHH:mm:ss',
      // <input type="datetime-local" step="1" />
      DATETIME_LOCAL_MS: 'YYYY-MM-DDTHH:mm:ss.SSS',
      // <input type="datetime-local" step="0.001" />
      DATE: 'YYYY-MM-DD',
      // <input type="date" />
      TIME: 'HH:mm',
      // <input type="time" />
      TIME_SECONDS: 'HH:mm:ss',
      // <input type="time" step="1" />
      TIME_MS: 'HH:mm:ss.SSS',
      // <input type="time" step="0.001" />
      WEEK: 'GGGG-[W]WW',
      // <input type="week" />
      MONTH: 'YYYY-MM' // <input type="month" />
    };
    return hooks;
  });
})(moment$1);
var momentExports = moment$1.exports;
var moment = /*@__PURE__*/getDefaultExportFromCjs(momentExports);

var DateUtils = {
  VALID_FORMAT: ["yyyy-MM-DD", "yyyy-MM-DD HH:mm:ss", "yyyy-MM-DD LT", "yyyy-MM-DD h:mm:ss A", "yyyy-MM-DD HH:mm:ss", "yyyy-MM-DD HH:mm"],
  DATE_FORMAT: "yyyy{DSLT}MM{DSLT}DD",
  DATETIME_FORMAT: "yyyy{DSLT}MM{DSLT}DD HH{TSLT}mm{TSLT}ss",
  TIME_FORMAT: "HH{TSLT}mm{TSLT}ss",
  YEAR_FORMAT: "yyyy",
  MONTHDAY_FORMAT: "MM{DSLT}DD",
  dateFormat: function dateFormat(param) {
    var DATE_SPELIT = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : "-";
    var patten = this.DATE_FORMAT.replaceAll("{DSLT}", DATE_SPELIT);
    return this.format(param, patten);
  },
  datetimeFormat: function datetimeFormat(param) {
    var DATE_SPELIT = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : "-";
    var TIME_SPELIT = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : ":";
    var patten = this.DATETIME_FORMAT.replaceAll("{DSLT}", DATE_SPELIT).replaceAll("{TSLT}", TIME_SPELIT);
    return this.format(param, patten);
  },
  timeFormat: function timeFormat(param) {
    var TIME_SPELIT = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : ":";
    var patten = this.TIME_FORMAT.replaceAll("{TSLT}", TIME_SPELIT);
    return this.format(param, patten);
  },
  yearFormat: function yearFormat(param) {
    var patten = this.YEAR_FORMAT;
    return this.format(param, patten);
  },
  monthDayFormat: function monthDayFormat(param) {
    var DATE_SPELIT = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : "-";
    var patten = this.MONTHDAY_FORMAT.replaceAll("{DSLT}", DATE_SPELIT);
    return this.format(param, patten);
  },
  getValidMomentDate: function getValidMomentDate(param) {
    var result;
    if (moment.isMoment(param)) {
      result = moment(param.format("yyyy-MM-DD"), this.VALID_FORMAT, true).isValid() ? moment(param) : "";
    } else if (typeof param === "string") {
      result = moment(param, this.VALID_FORMAT, true).isValid() ? moment(param) : "";
    }
    return result;
  },
  getNow: function getNow() {
    return moment();
  },
  format: function format(param, patten) {
    var temp = this.getValidMomentDate(param);
    if (moment.isMoment(temp)) {
      return temp.format(patten);
    }
    return "";
  },
  /**
   * 寻找日期范围内有效且最早的日期
   * @param {*} dateArray [string,string,string...]
   * @param {*} range [string,string]
   */
  findTheEffectiveAndEarliiestBetweenRangeDates: function findTheEffectiveAndEarliiestBetweenRangeDates(stringDateArray, range) {
    var momentDateArray = [];
    //将string日期组转换为moment日期组
    stringDateArray && stringDateArray.forEach(function (stringDate) {
      momentDateArray.push(moment(stringDate));
    });
    //按从小到大排序
    momentDateArray.sort(function (a, b) {
      return a - b;
    });
    var _range = _slicedToArray(range, 2),
      start = _range[0],
      end = _range[1];
    function compare(start, end, date) {
      if (isEmpty(start) && isEmpty(end)) {
        return true;
      } else if (isEmpty(start)) {
        return date.isSameOrBefore(end);
      } else if (isEmpty(end)) {
        return date.isSameOrAfter(start);
      } else {
        return date.isBetween(start, end, null, "[]");
      }
    }
    var result;
    //比较
    for (var i = 0; i < momentDateArray.length; i++) {
      var momentDate = momentDateArray[i];
      if (compare(start, end, momentDate)) {
        result = momentDate;
        break;
      }
    }
    return this.dateFormat(result);
  },
  /**
   *获取两个日期相差的周数
   */
  getDifferWeeksBetweenTwoDates: function getDifferWeeksBetweenTwoDates(date1, date2) {
    //1.转换为moment对象
    var moment1 = this.getValidMomentDate(date1);
    var moment2 = this.getValidMomentDate(date2);

    //2.由星期推算出该日所在周的星期一与该日相差天数
    var diffDays1 = moment1.format("E") - 1;
    var diffDays2 = moment2.format("E") - 1;

    //3.获取参考计算日
    var referMoment1 = moment1.subtract(diffDays1, "days");
    var referMoment2 = moment2.subtract(diffDays2, "days");

    //4.计算相差周数
    var diffWeeks = Math.floor(referMoment1.diff(referMoment2, "days", true) / 7);
    return diffWeeks;
  }
};

var showLog = true;
var logLevel = "debug";
var levelMap = {
  "debug": 4,
  "info": 3,
  "warn": 2,
  "error": 1
};
var template = "%c%s %c%s %c[%s] %c%s";
var LogUtils = {
  setShowLog: function setShowLog(val) {
    showLog = val;
  },
  setLogLevel: function setLogLevel(val) {
    var _val = val.toLowerCase();
    if (!levelMap[_val]) {
      this.error("".concat(val, " is not support,try [debug,info,warn,error]"));
      return;
    }
    logLevel = val;
  },
  debug: function debug() {
    if (showLog === true && levelMap[logLevel] >= levelMap["debug"]) {
      var _console;
      for (var _len = arguments.length, rest = new Array(_len), _key = 0; _key < _len; _key++) {
        rest[_key] = arguments[_key];
      }
      var array = ["color:black", DateUtils.datetimeFormat(DateUtils.getNow()), "color:#00BFFF", "DEBUG", "color:black", new Error().stack.split("\n")[2].trim().split(" ")[1], "color:black", ":"].concat(rest);
      (_console = console).log.apply(_console, [template].concat(_toConsumableArray(array)));
    }
  },
  info: function info() {
    if (showLog === true && levelMap[logLevel] >= levelMap["info"]) {
      var _console2;
      for (var _len2 = arguments.length, rest = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
        rest[_key2] = arguments[_key2];
      }
      var array = ["color:black", DateUtils.datetimeFormat(DateUtils.getNow()), "color:#3CB371", "INFO", "color:black", new Error().stack.split("\n")[2].trim().split(" ")[1], "color:black", ":"].concat(rest);
      (_console2 = console).log.apply(_console2, [template].concat(_toConsumableArray(array)));
    }
  },
  warn: function warn() {
    if (showLog === true && levelMap[logLevel] >= levelMap["warn"]) {
      var _console3;
      for (var _len3 = arguments.length, rest = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
        rest[_key3] = arguments[_key3];
      }
      var array = ["color:black", DateUtils.datetimeFormat(DateUtils.getNow()), "color:#FFA500", "WARN", "color:black", new Error().stack.split("\n")[2].trim().split(" ")[1], "color:black", ":"].concat(rest);
      (_console3 = console).log.apply(_console3, [template].concat(_toConsumableArray(array)));
    }
  },
  error: function error() {
    if (showLog === true && levelMap[logLevel] >= levelMap["error"]) {
      var _console4;
      for (var _len4 = arguments.length, rest = new Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
        rest[_key4] = arguments[_key4];
      }
      var array = ["color:black", DateUtils.datetimeFormat(DateUtils.getNow()), "color:red", "ERROR", "color:black", new Error().stack.split("\n")[2].trim().split(" ")[1], "color:black", ":"].concat(rest);
      (_console4 = console).log.apply(_console4, [template].concat(_toConsumableArray(array)));
    }
  }
};

exports.DateUtils = DateUtils;
exports.LogUtils = LogUtils;
